Demonsbane

At the beginning of your endstep, each opponent creates a 5/5 black demon creature token with
"at the beginning of your upkeep, sacrifice
another permanent."
Equipped creature has protection from Demons
and "when a Demon creature dies, exile it and
put a +1/+1 counter on equipped creature."
Equip {7}
Equip White Knight Creature {0}