G'raha Tia, Crystal Exarch

Flash
When G'raha Tia, Keeper of Mysteries enters the battlefield, draw two cards, then put a card from
your hand on top of your library.
{1}{u}, {t}: Scry 2, then reveal the top card of your library. If it's a nonland card with converted mana
cost 3 or less, you may cast it without paying its
mana cost.