Ragnar Heimdall

If Ragnar was cast from its owner's hand, it enters with two stun counters attached to it.
Flashback {w}{w}{w}
When Ragnar enters, Mill 5.

{4},{t}, Exile target white or black creature from target graveyard of mana value 5 or greater: destroy all historic permanents (including lands) and creatures (except Ragnar) of mana value 4 or less.

"What I chose to do."