Sylva, Princess of Iridia

Flying
{w}{w}: Ascension—Discard the top card of your
deck. If the discarded card has an even converted
mana cost, You become the monarch.
On your upkeep, if you are the monarch, create a colourless Treasure artefact token with '{t}, sacrifice
this artefact: add one mana of any colour to your mana
pool.'