Kurro, Orc with a Magic Rock

Whenever an opponent cast a spell, roll a d20 and put a
quest counter on Kurro, Orc with a Magic Rock.

[ 1 - 19 ] Kurro, Orc with a Magic Rock deals 1 damage
to any target.

[ 20 ] Destroy target nonland permanent.

At the beginning of your turn, remove all quest counters from Kurro, Orc with a Magic Rock, it gains +X/+X until end of turn, where X is the number of quest counters removed.