Arthas Menelift

Melee (Whenever this creature attacks, it gets +1/+1 until end of turn for each opponent you attacked this combat.)

Whenever one or more creatures you control with power 7 or greater deal combat damage
to a player, untap all creatures you control. If
it's the first combat phase of your turn, there
is an additional combat phase after this phase.

"My entire bicep must be purged."