Lifeline, Combat Medic

+1: Aura spells you cast that target you or a permanent you control cost 2 mana less to cast and gain flash until the beginning of your next turn.
-2: Return a creature from your graveyard to the battlefield if its power is less than or equal to the number of lands you control.
0: Put a +1/+1 counter on up to three target creatures. Those creatures gain vigilance until end of turn.