Jeskai Ascendency Combo v4 (Modern)

Combo

Getting down to the wire, here's the list for the GP as currently constituted. Main deck considerations:
I was up to 3 fatestitchers, down to one MM. This felt fine until I started playing moon in the board in the place of leyline (more on that below). Once I started playing with moon I really wanted the second MM again, so I think this decision might hinge on which sideboard option I go with. Otherwise I've decided Ideas Unbound is just better most of the time than nagging thoughts, and am still on the fence about replacing one noxious rev with one gutshot.

Sideboard:
I've been playing a couple different packages, each geared toward beating Burn or Humans. I've found Leyline to be good against burn, though Eidolon still often kills us. Aside from burn Leyline only really comes in against some of the hand-disruption lists, and a lot of the time I also want silence against them because they are playing counterspells. Siding it in was sometimes challenging.
With humans being the new bully in the format, I really wanted something to fight there as well. Blood moon was something I had initially tried, albeit for other matchups, and it was good against Humans, Jund/Grixis/Jeskai control, and wasn't terrible against burn. I am currently debating between 4 leyline or 3 Blood Moon (plus a card) in the board, and am leaning toward Blood Moon.
I'm pretty sure I want Heroe's reunion for the burn matchup, bu it really is ONLY for burn which is why I hesitate. Dromoka is there for burn as well, something to play over the top of eidolon and win the game, but I don't think I can play it without some number of Reunions to buy time.
Failure to Comply is a new addition that hasn't been tested much. I like it in theory but may not have time to really evaluate it.
Keranos and Emrakul are considerations for similar matches, mostly the Jundish and control matches where Blood moon really slows the game down and i need a finisher. I've thought about them for the burn match as a finisher in place of dromoka as well. I don't think anyone survives an emrakul trigger, and I think Keranos gives me great inevitability if the fast combo plan isn't going to work. I don't think either of these make the cut without moon, but because moon slows the game down I think I have to consider them there.

I'm open to thoughts, I'm sure there will be some last minute/second decisions to be made, might as well have all the opinions i can before i make it.