Mamani, Genesin's Creation

{t}{w}{u}{b}{r}{g}-Search your library for {x} cards
and exile them face up with creation counters on
them. Cumulatively, after each of your upkeeps,
reduce the cost of all cards with a creation counter
by one mana of any color. Creation cards cast
from exile may only be cast as a sorcery.
From the waves of fire, a single vessel flew through the
void of space towards a new world.-Anonymous