Summoners War Okeanos RTA Build, Runes, and Drafting Guide

To run Okeanos (Fire Sea Emperor) effectively in Summoners War World Arena (RTA), build him with maximum Speed, an effective 85% Accuracy target, and enough durability to survive counter-attacks. Okeanos functions as a high-tempo crowd-control disabler who controls matches by resetting dangerous single-target cooldowns with Spear of the Sea and cycling team-wide stuns with Rain of Stones.

Recommended Rune Builds and Stat Benchmarks

Okeanos requires high Speed and Accuracy to ensure his crowd control lands before opponents take control of the turn order. Will offset runes are standard across all builds to prevent opposing strippers and crowd controllers from shutting him down before his first turn.

Aim for the 85% Accuracy cap against high-resistance targets. Falling short risks missed resets on enemy cleansers and speed boosters, which can immediately break your control sequence.

Team Compositions and Speed Tuning

Okeanos only strips a single target with Spear of the Sea, so his multi-hit stun on Rain of Stones relies on allied area-of-effect (AoE) strippers to remove enemy Will runes first.

• Primary Strippers: Pair Okeanos with faster AoE strippers like Chiwu, Moore, or Triton. Chiwu provides a 24% Arena Speed lead and broad buff removal. Moore contributes turn-cycling, chip damage, and slow debuffs. Speed-tune your stripper to move immediately before Okeanos to avoid letting enemy Nemesis runes or passive turn-cutters interrupt the combo.
• Secondary Cooldown Controllers: Run Okeanos alongside units like Oliver, Sagar, or Ganymede to create continuous cooldown manipulation loops.
• Damage Insulation: If facing fire- or water-heavy bruisers, back Okeanos with dedicated elemental threats to handle passive targets he cannot quickly finish.

Skill Sequencing and Target Priority

Match your opening move to the enemy's defensive setup rather than automatically opening with Rain of Stones:

1. Check for Remaining Immunity: If an enemy target retains Will runes—or your stripper missed a critical strip on a high-threat monster like Woosa or Oliver—target that monster directly with Spear of the Sea. This strips their immunity buff, resets their skill cooldowns to maximum, and transfers any debuffs currently on Okeanos onto the target.
2. Deploy Rain of Stones on Stripped Teams: When the enemy line has no immunity buffs active, cast Rain of Stones. Each successful meteor hit stuns the target and refills Okeanos's Attack Bar, positioning him to cycle into his next turn rapidly.
3. Shed Incoming Debuffs: If enemy counter-attacks inflict defense break or slow debuffs on Okeanos, use Spear of the Sea on his following turn to cleanse himself by transferring those negative effects directly to the target.

Drafting Traps and Counter Matchups

Avoid blind-picking Okeanos without considering the opponent's counter options:

• Passive Cleansers: Juno, Tetra, and Haevan actively capitalize on debuffs. Juno heals her entire team and cleanses herself when afflicted with multiple harmful effects, making uncalculated uses of Rain of Stones a liability unless she is reset first.
• Glancing Punishments: Douglas and high-threat fire bruisers punish glancing hits. If Okeanos fails to land clean hits, Douglas can counter-attack for lethal damage.
• Base Speed Disadvantages: Okeanos has a base Speed of 104. Dedicated speed contest units like Triton, Sekhmet, and Eshir easily outspeed him on equal rune quality. If the opposing draft commits heavily to higher base-speed contest picks, run Okeanos on a Violent setup behind your own speed-contest bans rather than attempting to outrace them directly on Swift.