Bertold, Hellbent

: As long as you have no cards in hand, Bertold, Hellbent is an X/X Tiefling Warrior with menace, where X is the amount of loyalty counters on him.
+2: Bertold, Hellbent deals 2 damage to target creature, then tap that creature. If that creature dies this turn, draw a card.
-X: Target creature you control gains +X/+0 and trample until end of turn.