Gorgug, Menacing Mechanic

Whenever a creature you control takes damage from any source, put a +1/+1 counter on
Gorgug, Menacing Mechanic and roll a d20.
1-10 | Gorgug, Menacing Mechanic deals
damage equal to its power to target creature.
11-20 | Distribute X +1/+1 counters among creatures you control, where X is Gorgug, Menacing Mechanic's power.