Overhead Slam.

Gladiator active mastery skill, unlocked at level 4.

Global · 19 Sept 2026

What it does

Deals 188 damage to a target afflicted with Knockdown within 4m and increases Enmity. Has a 7% chance to trigger when attacking a target with Incapacitated Immunity. 5 Stagger Gauge Damage

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

Specialisations

3 slots

From level	Effect
8	Absorbs 0.7% HP
8	Changes to AoE Skill
8	Adds [Upward Strike] Chain Skill
12	Critical Hit on hit
16	Remove cooldown

Point cost

21 points in total

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

More Gladiator skills

All

Keen Strike Active · level 1 Rending Blow Active · level 1 Leaping Slam Active · level 1 Survival Stance Passive · level 1 Dodge Active · level 1 Mocking Blade Active · level 3 Sword Aura Rampage Active · level 5 Protection Armor Passive · level 6 Ankle Slice Active · level 7 Crushing Wave Active · level 8 Blood Absorption Passive · level 9 Rush Strike 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.