Zoe, Arcanist Prodigy

Partner with Kog'Maw, Arcanist Familiar (When
this creature enters the battlefield, target player may
put Kog'Maw, Arcanist Familiar into their hand
from their library, then shuffle.)
Whenever you cast a noncreature spell, scry X,
where X is the number of spells you have cast
this turn. Then you may pay {2}. If you do,
draw a card.