Grand Piece Online Best Raid: Onigashima vs Kaido Ranked

Picking the wrong Grand Piece Online raid burns 30+ minutes of grind for scraps while a smarter run can double your drops per hour, and most players never realize the tier gap until they have wasted an entire evening on the wrong boss. This guide ranks every current raid by solo viability, difficulty curve, and reward density so you stop guessing and start farming the run that actually pays off, with clear notes on what each fight demands before you queue in.

Raid Rankings: Solo Viability and Reward Quality

Every raid in Grand Piece Online scales with the current max level (675 as of the latest Roblox build), but the real differences between them show up in solo viability, party synergy demand, and the quality of the chest roll at the end. The table below ranks every active raid from easiest to hardest, with a one-line note on what makes each one worth the trip.

Onigashima sits at the top because its wave structure rewards players who have already mastered a single Fighting Style and a single Race passive, while the finale against Kaido forces you to actually use defensive cooldowns instead of face-tanking. Kaido Dungeon is shorter and denser, but the boss hits like a freight train even at the level cap, which is why most solo attempts clip on the second phase unless you bring the right Devil Fruit.

What "Best Raid" Actually Means in GPO

The phrase "best raid" gets thrown around a lot in the community, but it really splits into three questions: fastest clear per session, richest chest roll per clear, and lowest dependency on a full squad. If you are hunting XP, Onigashima wins because of its 12 enemy waves plus the Kaido finisher, which gives roughly 2x the combat XP of a single dungeon run. If you are farming specific gear like the Oni Mask or the Kaido Scale, you want the raid whose drop table actually contains that item, and that is where the tier list above gets fuzzy.

According to community data on the r/GrandPieceOnline subreddit, the Onigashima raid chest currently rolls three unique cosmetics per week, while Kaido Dungeon rolls a single high-rarity weapon piece but with a noticeably better drop-rate on Mythic-tier items. Players who run both report that the Onigashima raid is the most consistent money-maker per hour, while Kaido Dungeon is the better target if you are chasing one specific upgrade.

Why the Tier List Shifts Every Patch

Grand Quest Games rebalances raids roughly every major update, which means a raid that is S-tier this month can drop to A-tier after a damage nerf or a wave-count change. The current ranking reflects the post-Update 13 build, where Onigashima got a small HP buff on the fourth wave but kept the same reward table. If you are reading this several months after publication, check the Grand Piece Online boss guide 2026 for a refreshed list of raid bosses and their current stats before committing to a long farming session.

Unlock Gates: Level Floor and Gear Check

Every raid has a hard level floor, but the real gate is gear score, Devil Fruit synergy, and whether you have already unlocked the raid NPC. Most players hit the level cap weeks before they have the gear to actually clear a raid, which is why so many runs end in a wipe at wave six.

The Devil Fruit recommendation column is the most important one to read carefully, because bringing the wrong fruit into Onigashima can hard-lock your run. Ice users struggle against the fourth-wave Beasts because their AoE freeze has a 4-second cooldown that does not line up with the spawn pattern, while Leopard users can one-combo the same wave with their M1 chain if they have the third awakening unlocked.

Level Floor vs Effective Power

The level requirement is the bare minimum the game checks when you queue, but community testing shows that raids scale their damage to roughly 80% of the current max level. This means a level-500 Onigashima run against a player who is actually 675 will feel like the raid is hitting twice as hard, even though the UI says you met the floor. Most experienced players recommend being at least 50 levels above the floor before attempting a solo run, which is why the "effective level" is 550 for Onigashima and 600 for Kaido Dungeon.

If you are still climbing toward 500, focus on the Prison Raid first, because it teaches you the basic wave-clearing pattern that Onigashima assumes you already know. The Prison Raid also drops Iron Bars, which are a key crafting material for the Onigashima entry token, so farming the easier raid first actually unlocks the harder one faster.

Unlocking the Raid NPC

Each raid has an NPC that handles the entry token, and most of them are gated behind a questline. The Onigashima NPC is on Onigashima Island, but you have to first finish the Wano Act 3 story to get the boat ride unlocked, which is a common roadblock for players who try to jump straight into raids. The Kaido Dungeon NPC is inside Kaido's Castle, and you need to clear the Onigashima raid at least once to get the dialogue option to open. This linear unlock chain is why most players end up running Onigashima before they ever touch Kaido Dungeon as a standalone fight.

Grand Piece Online Onigashima Raid Guide: Waves, Bosses, and Chest Rolls

The Onigashima raid is the flagship end-game content in Grand Piece Online, and the community YouTube guide at this Onigashima walkthrough breaks down the full 12-wave structure if you want a visual reference. This section focuses on the mechanics you actually need to know to clear it solo, because the YouTube guide assumes you are running with a full squad.

Waves 1–3 are warm-up, and the real test starts at wave 4 where the Beast Pirates gain stun immunity. If you are running a Light fruit, switch to your sword Fighting Style for these waves because the light stun will not land. Waves 7–9 are where most solo attempts fail, because the Gifters scale their elemental damage to your current HP, which means a fight that felt easy at 90% HP becomes a one-shot at 60% HP. The trick is to keep your HP above 70% entering wave 7, which means using your healing ability on waves 5 and 6 even if you are not in danger yet.

Kaido Phase 1: Dragon Bite Windows

Kaido opens in dragon form, and his Dragon Bite attack has a 2.5-second wind-up that is your main damage window. Most solo players miss this window because they panic-dodge the wind-up animation, but the bite only hits a 30-degree cone in front of Kaido, so sidestepping left or right puts you completely out of the hitbox. After the bite, Kaido is locked in a 1.5-second recovery animation, which is the only time you can land a full M1 chain without trading damage.

If you are running the Leopard fruit, your fourth M1 in the chain will knock Kaido down, which gives you a 3-second punish window. This is the core combo that solo Onigashima speedrunners use to phase-1 skip the enrage timer, and it cuts roughly 4 minutes off the clear.

Kaido Phase 2 and 3: Survival Pattern

Phase 2 is where most solo attempts end, because Kaido drops his AoE slam every 8 seconds and it covers the entire platform. The slam has a 1.2-second telegraph (a red circle appears under your feet), which is just enough time to dash out if you are not already in melee range. The community-tested pattern is to bait the slam, dash sideways, then immediately re-engage because Kaido does not get a follow-up attack.

Phase 3 triggers at 10% HP and gives Kaido a 20% damage boost plus a faster slam cadence (every 5 seconds). This is where your Devil Fruit choice matters most, because Dark users can shield the enrage burst with their V move, while Light users have to raw-dodge. Bring a Mythic-tier healing fruit if you have one, because the enrage phase is the difference between a clear and a wipe for most solo runners.

Grand Piece Online How to Solo Raid: Loadout, Build, and Execution

Soloing a raid in Grand Piece Online is a gear check, a build check, and a stamina-management check all at once. The table below covers the three builds that the community has settled on as the most reliable solo options, based on YouTube guides and r/GrandPieceOnline clear videos.

The Sustain Dark build has the highest solo clear rate because Dark's V-move shield absorbs the Kaido enrage burst that wipes most other builds, but it also has the slowest clear time because Black Leg's damage output is lower than Sword or Electric Claw. The Burst Leopard build is the fastest, but it requires you to land every punish window perfectly, which is a steep skill floor for newer players.

Stamina and Cooldown Management

Stamina is the hidden gate on every solo raid, because if you run out at the wrong moment you cannot dodge, block, or dash. The general rule is to spend at most 60% of your stamina bar on offense, and keep the remaining 40% for the next boss phase transition. Most wipes at wave 8 happen because the player burned their stamina on the previous wave and had no dodge for the Gifter's ranged burst.

Cooldown management matters more for Devil Fruit users than for Fighting Style users, because your fruit's burst is what carries the boss DPS check. Always save your fruit's Z-move (the long-cooldown ultimate) for the boss phase, not the trash waves. Using it on wave 6 might feel good, but it means you enter the Kaido fight on cooldown, and the resulting clear is much slower.

Coordinating a 3-4 Player Clear

There is no shame in running a squad, and the Onigashima raid is genuinely designed for a 3–4 player group. According to community data, a coordinated 4-player squad clears Onigashima in roughly 12 minutes, which is nearly half the solo time, and the chest roll is shared so each player still gets a full drop. Squad runs also let you cover each other's stun immunity windows, which removes the single hardest mechanic for solo players.

If you prefer to keep practicing solo first, the solo Kaido dungeon guide breaks down the exact loadout, fruit pairing, and stamina pattern that translate directly to Onigashima phase 3, since the boss shares Kaido's transformation timing and buso flash windows, making it the closest single-player prep you can run before queuing with a squad.

Grand Piece Online Kaido Raid vs Onigashima: Which Should You Farm?

Players often ask whether they should farm Onigashima or the standalone Kaido Dungeon, and the honest answer is "it depends on what you are chasing." Both raids share the same final boss, but the chest tables and the entry requirements are different enough that you will probably end up running both.

If you are farming for a specific Mythic weapon piece, Kaido Dungeon has the better drop rate because its chest table is smaller, which means each roll has a higher chance of hitting the item you want. If you want cosmetics and a mix of materials, Onigashima is the better farm because the wider chest table gives you more rolls per clear.

Time Efficiency per Reward

Time-wise, Kaido Dungeon wins on a pure reward-per-minute basis if you already have the entry key and the gear to handle the damage check. Onigashima wins on reward-per-run because you get a chest at the end of every 3-wave segment plus the final boss chest, which is 5 chests per clear instead of 2. The optimal pattern reported by community players is to alternate: run Onigashima for the variety, then burn 2–3 Kaido Dungeon runs for the targeted drop, then return to Onigashima.

The Grand Piece Online raid guide has a full walkthrough of both raids if you want the step-by-step rotation that experienced players use to maximize drops per hour, including exact wave-skip thresholds, Devil Fruit proc windows inside the Onigashima boss arena, and the recommended Kaido Dungeon party comp (one tank with Logia immunity, two burst DPS, one support) that clears the enrage check before the 12-minute wipe timer expires.

Raid Prep Checklist and Common Mistakes

Most raid wipes come from the same handful of mistakes, and a 5-minute prep checklist can save you 30 minutes of failed attempts. The table below covers the prep items that matter most, ranked by how often they actually decide the run.

The most common mistake is opening chests mid-raid because the UI tells you they are available, but mid-raid chest rolls count against your weekly drop cap, and the same chest still rolls at the end of the clear. Always wait until the final boss chest before opening anything, because the end-of-raid chest is a guaranteed roll while the mid-raid chests are lottery.

The Food Buff Trap

Many players assume the HP food buff is minor, but the +15% max HP is the difference between surviving a Gifter one-shot at wave 8 and dying to it. The buff lasts 30 minutes, which covers a full Onigashima run plus a Kaido Dungeon run if you chain them. Always eat the buff at the raid NPC, not at your base, because zone transitions can cancel the timer.

When to Reset vs Re-Attempt

If you wipe at wave 4 or earlier, reset immediately because the run is not worth the time. If you wipe at wave 10 or later, consider re-attempting because the boss chest is still a guaranteed roll even on a fail, and the time investment is already sunk. This is a small optimization, but across 20 raid attempts it saves roughly 90 minutes of grinding.

For a full breakdown of where every raid NPC and boss spawns, the dungeon locations reference maps out the entire prep loop from spawn to clear, including exact island waypoints for Onigashima's wave gates, Kaido's rooftop arena, and the pre-raid NPC clusters you need to clear before the boss spawns. Cross-reference that map with the reset rules above—if your current position is on Onigashima wave 6 and you wipe, the spawn-to-respawn travel time alone makes a reset faster than re-attempting from checkpoint.

Frequently Asked Questions

What is the Grand Piece Online best raid for solo players?

The Onigashima raid is the best solo raid for most players because it has the highest clear rate (~85% with the right build) and the widest chest table, which means more drops per run. The Sustain Dark build is the safest solo option, while the Burst Leopard build is the fastest if you can land every punish window.

What level do I need for the Onigashima raid in Grand Piece Online?

The hard level floor is 500, but community testing shows you want to be at least 550 before attempting a solo run, because raid damage scales to the level cap. Players below 550 should farm the Prison Raid first to unlock the Onigashima entry token and practice the wave-clearing pattern.

Can I solo the Kaido raid in Grand Piece Online?

Yes, but it is borderline. The Kaido Dungeon is solo-viable for experienced players with a level of 600+, a Mythic-tier fruit, and a gear score above 1.5M. Most players report a higher success rate with a 2-person squad, which cuts the clear time to roughly 12 minutes.

What Devil Fruit is best for Grand Piece Online Onigashima raid?

Leopard, Light, and Dark are the top three community picks. Leopard is the fastest clear, Light is the most consistent on trash waves, and Dark has the highest survival rate because of the V-move shield that absorbs the Kaido enrage burst. Dragon is a solid fourth option if you already have it awakened, but it falls behind in stamina efficiency.

How long does the Onigashima raid take in Grand Piece Online?

A solo clear takes 25–35 minutes depending on your build and gear score, while a coordinated 4-player squad clears in roughly 12 minutes. The average player clear time reported on r/GrandPieceOnline is 28 minutes for solo and 13 minutes for a full squad.