Ehkles Vilest, Lost

Ehkles prevents all damage dealt to him, if he
were to be removed from the battlefield, return
him to the battlefield. If Ehkles is the target of
an ability. Put a +1/+1 counter onto Ehkles,
untap Ehkles, and Ehkles deals X damage to each
nondemon creature where X is how many +1/+1
counters are on Ehkles.
This spell costs {1} less to cast for each demon
in all graveyards.