Megalo Don, King of the Wastes

Vigilance
Other wastelanders you control get +1/-1.

{r}{r}: Put a nitro counter on Megalo Don.
Take a nitro counter off of Megalo Don: Put a +1/+1 counter on Megalo Don.
Take 3 nitro counters off of Megalo Don: Exile Megalo Don and return him to the battlefield transformed.

"I will raze this Island to the ground once my
Leviathan awakes."