Aesi, Sea-Serpent Scourge

You have no maximum hand size
{u}{u}{t}; Exile an instant card from your hand or graveyard, Counter and/or copy target spell (you
may choose new targets for the copy)"Aesi, Sea-
Serpent Scourge" phases out until your next turn.
{2}{g}{u}{t}; Discard two cards, Untap any number
of tapped lands you control. "Aesi, Sea-Serpent
Scourge " doesn't untap during your next
untap step.