Jesaki deck utilizing myth realized.

Initially this deck was created to exploit the myth realized, zephyr scribe, retraction helix infinite combo but has since evolved into a Jeskai: midrange (?)

I've had good luck with this deck online and in casual games. If it doesn't die due to haste- early game aggression (what can i do about this?) it builds up a VERY strong board state.

The sideboard is new and yet to be tested, any advice towards strengthening it would be appreciated, especially to stalling abzan midrange.