Jace: This is your main win condition with this deck.
Tamiyo: Recur ramp cards like growth spiral mostly, but has some good utility in letting you re-use key disruption cards like Vraska's Contempt or Root Snare to stay alive long enough to combo out.

The main idea is to get massive value from slamming Omniscience down and with all your extra mana available, cast a X=10 or greater Finale of Revelation, draw a shitload of draw spells, and combo out with Jace. Alternatively, this deck has the ability to go long and just win with Jace without Finale.

It's not perfect yet, but it's fun as hell to play.