Dagger of Pain

Discard a card: Until end of turn, whenever you discard a card, choose 1:
*Take control of target creature until end of turn.
*Target creature gains haste until end of turn.
*Untap a creature you control but don't own.
Whenever a source you don't own deals damage
to another player, equipped creature deals 4 damage to target creature that player owns.
Equip {2}