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OP-17: The World's Strongest Warriors released in Japan on August 22, 2026, ran a US prerelease window starting August 21, and hit English wide release on August 28, 2026 — a date confirmed on Bandai's official product calendar. At the time of writing, this set is two days old. That matters for how you should read everything below: this is a first-look review of a set the wider community has barely had time to open, sort, and argue about, not a settled verdict written months into a format.

What we do already know is enough to make OP-17 one of the more interesting drops the game has had in a while. The set leans directly into the manga's current Elbaf Arc and the growing presence of the Four Emperors, and it backs that theme with two genuinely notable pulls: a brand-new Leader in Rocks D. Xebec who has never been printed in the card game before, and a Manga Rare treatment given to all four Emperors in a single set — Whitebeard, Shanks, Kaido, and Big Mom. That's a deliberate, thematically coherent flex from Bandai, and it's the first time the game has gone that far with its highest-end parallel treatment for a single group of characters.

This review walks through the theme, the new Leader and how the ability actually works, the Four Emperors Manga Rare lineup, the early chase card, and an honest read on who should be excited about OP-17 right now versus who should wait. A caveat up front: Bandai has not published a full spoiler list or set-size count for OP-17 as of this writing, and no pull-rate percentages have been confirmed. Anywhere this review would normally cite a hard number, it says so plainly instead of guessing.

The Set at a Glance

The fast read on what's confirmed about The World's Strongest Warriors so far:

Two of those rows are deliberately left as "not confirmed" rather than filled in with a number. That's not us being cagey — it's genuinely where the community sits two days after release. If you see a full decklist, a total card count, or a specific pull-rate percentage circulating for OP-17 right now, treat it as unverified until Bandai or a major tracker confirms it directly.

The Elbaf Arc & the Four Emperors

Every mainline One Piece TCG set tracks the manga fairly closely, and OP-17 is explicit about where it's pulling from: the current Elbaf Arc, and the escalating presence of the Four Emperors as the story's power structure comes into sharper focus. You'll sometimes see the arc's name spelled "Elbaph" rather than "Elbaf" — both show up depending on the source and, as we'll get to below, it even shows up that way in a card's own type line — so don't be thrown if you see either spelling used interchangeably.

Thematically, this is a smart set to build around. The Four Emperors have been the game's biggest recurring cast of "trophy" characters since the card game launched, and building an entire set's premium-rarity strategy around all four of them at once — rather than spreading that spotlight across multiple releases — gives OP-17 a cohesion that a lot of sets built purely around new mechanics don't have. It also means the set functions on two levels at once: as a vehicle for a new competitive archetype via Xebec, and as a pure "big names, big treatments" collector product via the Emperors themselves.

If you're newer to the game and the Four Emperors as a concept don't mean much to you yet, or you just want the full rules picture before diving into a brand-new set, the site's One Piece Card Game rules guide and strategy hub are both good starting points before you commit money to OP-17 product.

New Leader: Rocks D. Xebec

The single biggest competitive story in OP-17 is Rocks D. Xebec, a Blue Leader who has never been printed in the One Piece TCG before this set. New Leaders are always a big deal in this game — Leaders define your entire deck's color identity and win condition — but a first-ever printing carries extra weight, because there's no prior card pool history to compare it against. Everything about how Xebec decks want to be built is being figured out in real time, starting this week.

What's notable is how quickly the community has moved on him. Even at just days into the set's life, early trackers already have Xebec decks in serious top-tier archetype conversations — not as a speculative "this might be good once support arrives" pick, but as a legitimately strong option right out of the gate. If you want the more detailed competitive breakdown of where Xebec and the rest of the early OP-17 field are landing, that's exactly what the site's companion OP-17 meta tier list is for — this review stays focused on the set itself.

Worth flagging for anyone brand new to competitive deckbuilding in this game: a top-tier Leader announcement in the first few days of a set doesn't automatically mean an accessible entry point for beginners. If you're assembling your first serious deck and don't yet know how to evaluate a Leader ability outside of "is it good," the site's first competitive deck guide is a useful companion read before you commit to building around a brand-new Leader with an unsettled supporting cast.

How the Xebec Engine Actually Works

It's worth being precise about what Xebec's ability does, because "new top-tier Leader" can conjure images of a raw stat monster or a board-wipe button, and that's not what's happening here. Xebec's Leader ability trashes a card from your hand or deck, then lets you look at the top card of your deck — and if that revealed card is a Rocks Pirates-type card, you draw two cards instead of just resolving the look.

Read that again and the shape of the deck becomes clear: this is a deck-thinning, card-selection engine, not a raw-power ability. You're not winning games because Xebec himself hits the board and swings for a huge number. You're winning games because your deck gets smoother, more consistent, and more resource-efficient turn over turn than an opponent running a Leader with a flashier but shallower effect. That's a very different kind of "top tier" than the kind built on stat lines, and it tends to reward players who are comfortable making small efficiency decisions every turn rather than looking for one big swing.

The practical upshot for deckbuilding is that Xebec wants a critical mass of Rocks Pirates-type cards to make the "draw 2" half of his ability trigger reliably, rather than whiffing into a dead look at the top of the deck. Exactly how deep that support runs in OP-17 — and in future sets — is still being mapped out day by day, which loops back to why this review is deliberately staying in "here's the mechanic, here's the shape" territory rather than handing you a finished decklist that nobody has actually had time to prove out yet.

The Four Emperors Manga Rare Treatment

The collector-facing headline of OP-17 is simpler to state than Xebec's ability, and arguably just as significant: all four Four Emperors get the Manga Rare treatment in this set. That's Edward Newgate, better known as Whitebeard (OP17-005), Shanks (OP17-022), Kaido (OP17-062), and Charlotte Linlin, better known as Big Mom (OP17-112). Manga Rares reproduce a card's artwork in a black-and-white, manga-panel-style parallel treatment, and they've become one of the most sought-after chase treatments in the game precisely because Bandai has historically used them sparingly.

Base Super Rare print versus the Manga Rare Four Emperors parallel treatment, side by side:

A quick note on those images: both are pulled directly from Bandai's own official card list, which is why you'll see a "SAMPLE" watermark stamped across them. That watermark is standard on Bandai's official preview art for this game, not a sign of anything wrong with the images — you'll see the same watermark on the Loki image further down this review.

Whitebeard's base print gives you the standard, full-color Super Rare version of the card — the version most players will actually own and play with. The Manga Rare parallel strips that down to the high-contrast, manga-panel treatment, and it's the version collectors are going to be hunting specifically. Multiply that same base-versus-parallel relationship across Shanks, Kaido, and Big Mom, and you've got four separate premium chase pulls built around characters who were already the most recognizable names in the franchise before this set even released.

If you're trying to get a handle on how Manga Rares, Secret Rares, and the rest of this game's rarity ladder actually stack up against each other — and what that typically means for how a card holds value over time — the site's general rarity guide covers that ladder in full outside the context of any one set.

The Early Chase: Loki, Secret Rare

Outside the Four Emperors lineup, the card generating the most early attention is Loki (OP17-119) — a Black Secret Rare, Cost 6, Power 8000, carrying the Giant/Elbaph type line. Secret Rares sit above Manga Rares in most players' mental hierarchy of "hardest to pull," and Loki's combination of Secret Rare status and a direct tie to the set's Elbaf/Elbaph theme has made it the card most people are asking about after their first few packs.

We're deliberately keeping this section brief. Deep pricing analysis, early sale comps, and a fuller read on where Loki and the rest of OP-17's chase cards are trending belongs in its own dedicated piece rather than duplicated here — that's exactly what the site's companion OP-17 chase cards price guide is for. What's safe to say in a set review written two days after release is simpler: Loki is the card to watch, it's a Secret Rare, and its price is going to move fast in either direction over the next few weeks as more of the set gets opened and the print run becomes clearer. Anything more specific than that would be a guess dressed up as a fact.

Manga Rares in Context: OP-16 to OP-17

To understand why four Manga Rares in one set is a meaningful escalation rather than just "another set with parallels," it helps to look at what came immediately before. OP-16, The Time of Battle, built around the Paramount War and Marineford arc, released in English on June 12, 2026 — and it was the first set in the game's history to carry three Manga Rares in a single release. That was already a record at the time.

OP-17 doesn't just match that record — it breaks it, and it does so with a tighter thematic hook than OP-16 had. Where OP-16's three Manga Rares were notable simply for the count, OP-17's four are all tied to one unifying concept: these are specifically the Four Emperors, printed together, in the same premium treatment, in the same set. That's the kind of decision that reads as a direct continuation of the trend OP-16 started, escalated on purpose rather than by coincidence.

For collectors, that pattern is worth watching going forward. Two consecutive mainline sets pushing Manga Rare counts upward suggests Bandai sees real demand for this treatment specifically, which has implications for how future sets might be built — and for how the current crop of OP-16 and OP-17 Manga Rares get valued relative to each other as more of both sets circulate.

Best for Players

If you play competitively, OP-17 is one of the more interesting sets to jump into in a while, for one specific reason: it introduces a genuinely new Leader with no prior print history, and that Leader is already being taken seriously by trackers as a top-tier option. That combination — new archetype, immediate relevance, ground floor — doesn't come along in every set. A lot of releases add incremental support to existing strategies; OP-17 hands the format an entirely new deck to learn from scratch, and everyone is learning it at the same time you are.

The trade-off is exactly what you'd expect from a set this fresh: the supporting cast, the ideal ratios, and the matchup knowledge around Xebec decks are all still being worked out in real time. If you like being early to a new archetype and enjoy the process of figuring out a deck alongside the wider community, that's a feature, not a bug. If you'd rather buy into a deck with a settled, well-documented build in the meantime, the site's ST31–ST36 starter decks ranked guide covers exactly that kind of proven, already-mapped-out option, and you may want to give Xebec a few more weeks before committing serious money to singles.

Best for Collectors

For collectors, OP-17's pitch is arguably even more straightforward than its pitch to players. Four of the most recognizable characters in the entire franchise, all receiving the same premium Manga Rare treatment, in the same set — that's about as clean a "get the whole set of trophies" collecting goal as this game has offered. You don't need to understand a single line of Xebec's Leader ability to appreciate what it means to own the Manga Rare Whitebeard, Shanks, Kaido, and Big Mom as a matched set — and how you store and display a set like that matters as much as what you paid for it, which is exactly what the site's binders vs. boxes guide walks through.

Loki adds a fifth target for collectors who want to chase something beyond the Emperors themselves, and its tie to the Elbaf/Elbaph theme gives it a narrative hook that goes beyond just being a hard pull. The obvious caution here is timing: this set is two days old. Early market prices on brand-new chase cards are notoriously volatile, and they can swing hard in either direction as opening volume increases and the actual print run becomes clearer over the following weeks.

How to Buy In Smart

For a set this fresh, the smartest approach is usually the least exciting one: decide what you actually want out of OP-17 before you spend anything. If your goal is to build and play a Xebec deck, you're better served buying singles once the ideal build starts to stabilize than opening boxes hoping to hit the specific Rocks Pirates-type support cards you need. If your goal is the Four Emperors Manga Rare set, singles are almost always the more efficient path to a specific card than box-opening odds that haven't even been confirmed yet. For a fuller, product-by-product rundown of where to put your money right now, the site's OP-17: What to Buy Right Now guide breaks that down further.

Booster boxes still make sense if you want the full "opening experience," want a shot at Loki or one of the Emperors alongside a pile of playable Xebec support, or you're planning to build a complete competitive deck anyway and would rather offset the cost with what you pull. Just go in with the numbers in mind: since Bandai hasn't published pull-rate percentages for OP-17 yet, there's no way to calculate expected value on a box right now with any real confidence — you're buying the experience and the upside, not a guaranteed return.

Whatever route you take, protect what you pull. New chase cards from a set this fresh are exactly the ones you don't want to handle bare while you decide whether to keep or sell — and since condition is what actually determines value if you do sell, the site's card condition guide is worth a read before you list anything. The site's sleeves and deck box guide covers what to grab before your OP-17 pulls arrive.

Common Buying Mistakes

A few patterns show up every time a set this significant drops, and they're worth naming directly. First: treating early "confirmed" spoiler lists or set-size numbers as settled fact. As of this writing, Bandai has not published a full type count or complete card list for OP-17 — anything circulating that claims otherwise should be treated as unverified until it comes from an official source.

Second: anchoring to a pull-rate percentage that hasn't actually been confirmed. It's common for numbers to start circulating informally in the first days after a set drops, sometimes carried over from a previous set or extrapolated from a small opening sample. None of that is the same as an official confirmed rate, and building a box-buying decision around an unconfirmed number is a good way to end up disappointed. For a broader look at how Bandai's pull rates and case-hit math typically shake out once official numbers do land, the site's pull rates and box mapping guide is worth reading before you lean on any early number.

Third, and this one cuts both ways: overreacting to two days of price data on Loki or the Four Emperors Manga Rares in either direction. Early prices on a brand-new chase card reflect scarcity from a tiny opened sample, not a settled market. Whether you're buying or selling, give the market at least a few weeks to find its actual level before treating any single listing as the "true" price.

Finally, don't assume a top-tier Leader announcement this early means the deck is beginner-friendly or that a build exists you can copy confidently today. Xebec's engine is powerful on paper, but the specific ratios and support choices that make it consistent in practice are still being worked out. Buying a stack of unproven singles for a deck that hasn't stabilized yet is a common way new-set hype turns into a binder of cards you're not actually playing.

The Verdict & Quick Reference

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