Starscourge Radahn

Trample
When Starscourge Radahn enters the battlefield,
he deals four times X damage to each other
creature, where X is the number of times your commander has been cast from the command
zone this game.
Whenever another creature dies, put a +1/+1
counter on Starscourge Radahn and Starscourge
Radahn deals 1 damage to you.