Vivien, Spirit Striker

+1: Target creature you control gains +1/+0 and either trample or first strike until end of turn.
-X: Search your deck for a creature card with converted mana cost X or less and put it onto the battlefield with haste. sacrifice it on your end-step.
-7: Search your deck for any number of creature cards. put them onto the battle field with haste. shuffle them into your deck on your end-step.