Earthscorcher

Invade (This creature can target noncreature
lands for attacks as though they were planeswalkers.
If an invaded land becomes a creature before the
damage step, remove this creature from combat.)
Whenever Claim Staker deals combat damage to
a land, put a blaze counter on that land at end of combat. As long as that land has a blaze counter
on it, it has "At the beginning of your upkeep,
this land deals 1 damage to you."