Yorick, Soul Shepherd

Deathtouch
Whenever Yorick, Soul Shepherd enters the battlefield, create X black 0/1 Mist Walker
creature tokens, where X is the amount of mana
spent to cast Yorick.
{t}, sacrifice four other creatures: Create a black
0/0 Maiden of the Mist legendary creature token
with, "This creature gets +1/+1 for each card in
all graveyards."