The Erdtree

{t}, Exile target creature cards equal to the number
of Golden Seed counters on The Erdtree from a graveyard: Add one mana of any color and put a
Golden Seed counter on The Erdtree. Whenever
one or more cards are exiled with The Erdtree, for
each card exiled, the owner of the card creates a 1/1 skeleton creature token.

"Ohh, Erdtree, great Erdtree. The Golden Order
itself, unwavering, stretched to the sky."