Artamus, Swamp Hunter

: When Artamus, Swamp Hunter enters the battlefield, destroy target black/green creature, if it is neither, give it a -2/-1 until end of the turn
-2: destroy target creature, give a creature +2/+0 until the end of the turn
-5: give two creatures of your choice +3/+0 until the end of the turn. Destroy Artamus, Swamp Hunter and summon one 7/4 black green Artamus