Xirytas, Moldbreak Angel

Flying, flash, hexproof from green & from black
When Xirytas, Moldbreak Angel enters the battlefield, create a blue and red enchantment
aura token named Glimmersurge with "Enchan-
-ted creature has '{t}: Draw a card, then discard a
card'", and attach it to a creature you control.
{x}, {t}: Exile target instant card from your
graveyard with converted mana cost X. You may
cast a copy of that card.