Kazavon, Unchained Dracolich

(Flips from Queen Ileosa, Blood Monarch)
Flying, Indestructible, Haste, First Strike
Kazavon, Unchained Dracolich cannot attack
unless you sacrifice a permanent.
Whenever you sacrifice a permanent, each
opponent sacrifices a permanent of the same type.
If an opponent cannot, that opponent loses 5 life.