Big rat, draw cards

Whenever a creature you control is dealt damage, put a +1/+1 counter on it. (It must survive the damage to get the counter.)

: This creature deals X damage to each creature and each player. Spend only black mana on X.

Enchant creature Enchanted creature gets +1/+1 and has "Whenever this creature deals damage to an opponent, you may draw a card." Umbra armor (If enchanted creature would be destroyed, instead remove all damage from it and destroy this Aura.)