Amumu from Teamfight Tactics Set #10

Ability

Tantrum

Passive: When attacked, gain @ArmorGain@ Armor (stacks up to @StackCap@ times).

Active: Deal @TotalDamage@ (%i:scaleAP%%i:scaleArmor%) magic damage to adjacent enemies. Every 3rd cast hits enemies within 2 hexes and Stuns them for @StunDuration@ seconds.

@TFTUnitProperty.:TFT10_Headliner_TRA@