Scorch the Earth

Add the beginning of your end step, put a scorch counter on Scorch the Earth.
Then, Scorch the Earth deals 1 damage to each
creature for each scorch counter on it, and 1 damage to you.
{p/r}{p/r}{p/r}{p/r}{p/r}, sacrifice Scorch the Earth: Scorch the Earth deals 5 damage to any target.