SCP-516, Sentient Tank

SCP-516 can't deal damage to creatures with
power less than SCP-516's toughness.
SCP-516 can't attack players unless that player
has cast a spell that targeted SCP-516 this turn.
Whenever SCP-516 becomes a target of a spell,
SCP-516 deals damage to the spell's controller
equal to it's power.
Whenever SCP-516 becomes a target of an ability
of a creature an opponent controls, SCP-516 deals damage to that creature equal to its power.
Crew 2