Whirlwind Slice.

Assassin active mastery skill, unlocked at level 7.

Global · 19 Sept 2026

What it does

Deals 300 damage to a target within 4m with a 3000% chance to rotate and inflict Stun for 3000 on Evasion. 100% to inflict Stun on NPC targets. 7 Stagger Gauge Damage

Text from the KR/TW client; Global numbers may differ.

Specialisations

3 slots

From level	Effect
8	+50% Multi-Hit on hit
8	Changes to AoE damage
8	+16m range
12	+20% Stun Chance
16	25% chance to reset [Whirlwind Slice] cooldown on Evasion

Point cost

21 points in total

Skill level	Points	Character level
1	0	7
2	1	7
3	1	10
4	1	13
5	2	16
6	2	19
7	2	22
8	4	25
9	4	28
10	4	31

More Assassin skills

All

Quick Slice Active · level 1 Savage Roar Active · level 1 Shadowstrike Active · level 1 Heightened Sixth Sense Passive · level 1 Dodge Active · level 1 Ambush Active · level 3 Heart Gore Active · level 4 Storm Rampage Active · level 5 Exploit Weakness Passive · level 6 Flash Slice Active · level 8 Apply Poison Passive · level 9 Infiltrate Active · level 10

Data from the Global client build of 19 Sept 2026 ; skill descriptions come from the KR/TW client, so a number inside one can differ on the Global servers — the tables above are Global values . Snapshot taken 30 Sept 2026. AtreiaLegend is an unofficial fan site, not affiliated with or endorsed by NCSOFT. AION and all related content are trademarks of NCSOFT Corporation.