How do I win?

Demonic Consultation/Tainted Pact + Jace, Wielder of Mysteries/Thassa's Oracle.
This route is the main win condition. Less moving parts, easier to assemble and slightly easier to protect as it mainly revolves around the stack versus using permanents to achieve a combo win. Landing a Jace onto the board and then following it with a Demonic Consultation naming "Plains" or using Tainted Pact to move my deck into exile, and then drawing a card with Jace.

Infinite Mana and X Spell.
IsoRev or Bloom Tender + Freed from the Real will both generate infinite mana but are dependent on resolving the permanents themselves. Bloom Tender will take a turn of sitting on the board as there is not a current way to give it haste, but will generate infinite colored mana. You can cycle the infinite colored mana through Tasigur, the Golden Fang to retrieve every non-land card from your deck to grab Torment of Hailfire or Walking Ballista and kill everybody.

Both win conditions are fine and I have no issue with either. I think the deck works smoothly, just looking for cards I may have missed that may help improve percentages.

Thanks!