It's a neat concept! Leyline of Anticipation is a neat card for enabling your style of deck and boosting devotion. That said...I don't think Prophet of Kruphix is remotely playable in competitive formats. It's a 5 mana ramp spell at the top of your curve that dies to Lightning Strike . It's like a really vulnerable Fires of Invention . Drop prophet if nothing else, it's so much worse than leyline for you.

I feel pretty confident in saying that your green splash just isn't worth it as this build stands now. It severely strains your mana, prophet isn't worth it, Growth Spiral is decent but not something to splash for, and while Frilled Mystic is pretty good, double green is so hard. Your green splash sacrifices your ability to consistently play Gadwick, or have a t4 play of cutthroat into > trickster. 3 forest + 3 nykthos will absolutely to back to haunt you in terms of mana consistency. Alternately, look into some Nightpack Ambusher if you want a payoff for playing at instant speed. Also, if you do stay in green, see about Scavenging Ooze for your sideboard.

I also think the Torrential Gearhulk + Dig Through Time package doesn't make a lot of sense. Gearhulk is NOT good if he just opts; he's only impressive if he has a variety of spells to choose from, like counterspells or removal. But you're a creature deck, and he synergizes with noncreatures. Similarly, dig synergizes with high volumes of instants and sorceries going to the graveyard, and 8 pieces of fuel is NOT enough.

Lastly, the inclusion of Flood of Tears confuses me. You don't have high CMC payoffs, so it's just a boardwipe that you get to recover from faster. If you really want that effect, Cyclonic Rift is superior in almost every way(though I'm not SURE you want the effect at all).