One-Cut, the Oni Slayer

Triumph 2 (Whenever this creature blocks or
becomes blocked by a red or black creature, it gets
+2/+2 until end of turn.
Whenever One-Cut, the Oni Slayer deals combat damage to a Demon, Spirit, Horror, Devil, or
Zombie, choose one—
•Put that many +1/+1 counters on it. (It must
survive the damage to get the counters.)
•Draw a card for each Rat you control.