Cosmic Ascendancy

If this spell is the first spell you've cast this game,
you may cast it without paying its mana cost.
As an additional cost to cast this spell, discard a
creature card.
Search your library for a creature card that shares
a color with the discarded card, reveal it, and put
it into your hand. Then shuffle your library.
"Being queen of the Cosmos has its perks." - Atropha