Rasga, Protector of elf's

+12-: cerate number of 2/2 elf tokens for how many green cards you have win your battle field.gain life equal to the creatures in the opens graveyard.
+9: kill target creature and gain life equal to its toughness.and create a number of 2/2 elf tokens from the defense of the creature.
+15-: gain life equal to how many elf tokens you have.Search your library or graveyard for a card named Elf Archer.when on battle felid gain 5 life.