Avengers, Assemble!

Active these abilities according to how many {1} you used to play this card:
{1}+: Add 1 Avenger-type creature from you deck
to your hand.
{2}+: Destroy 1 artifact in play.
{3}+: Purge an enemy creature.
{4}: Add 1 "Stone" artifact card from your deck to
your hand.