Spikejaw, Loomer in the Fog

Whenever Spikejaw, Loomer in the Fog would be destroyed, exile it instead for X turns, where X
is its toughness at the time of its destruction.
Then, return it to the battlefield with X +1/+1 counters on it.
At the beginning of your upkeep, Spikejaw,
Loomer in the Fog deals damage equal to its
power to you.
A plague to friend and foe alike.