Esper Erayo (Modern)

The idea is to lock your opponents out as early as turn 2 with Erayo and by playing some free spells to flip him. Once Erayo has flipped most decks will be slowed down quite heavily allowing you to win with Geist, Liliana or Gideon. Repeal is good as it allows you to bounce already played cards back to your opponent's hand for them to be countered by the flipped Erayo, it also allows you to bounce a 0 cost spell if you need a couple more to flip Erayo and with a Mox can represent 3 spell casts between the two of them with 0 mana input from lands. Ether sworn canonist with a flipped Erayo is a hard lock for most decks with some exceptions, I think it is better than using Rule of Law or Eidolon (which would be a hard lock against everything except for some extremely spicy situations) because it doesn't limit me as much with my turns also meaning that it isn't impossible to flip an Erayo with Canonist out.
The sideboard targets some deck's that i feel that the deck is weak against such as KCI and Tron.
Any input would be much appreciated. I've been testing a couple days and really enjoying it and would really like to keep improving the deck.