Malofex, Starved Nergigante

Flying
Scavenger—Whenever another creature dies, put
a +1/+1 counter on Malofex, Starved Nergigante.
Extinction Dragon—Whenever this creature
attacks you may remove all counters from it.
If you do, it deals X damage to target opponent
and all creatures that player controls where X is
the number of counters removed this way.