Action [exhaust]: Attack with a unit that costs 3 or less. If it's attacking a unit, it gets +1/+0 for this attack.

Epic Action: If you control 5 or more resources, deploy this leader. (Flip him, ready him, and move him to the ground arena.)

Overwhelm (When attacking an enemy unit, deal excess damage to the opponent's base.)

Each friendly unit that costs 3 or less gets +1/+0 and gains Overwhelm while attacking an enemy unit.