Bhaltair Razming

+1: Until the end of the turn, Bhaltair Razming becomes a 5/5 rat warrior. Prevent all damage that would be dealt to him this turn.
+3: Sacrifice 1 artifact connected to Bhaltair Razming. Draw a card.
-5: All rats on the field gain deathtouch. Pick any of your opponent's cards. Exile it.