Some updates from my recent play with this deck. I split top 2 in another local event, then took it to a GPT and a PPTQ this weekend.
At the GPT, I went 3-0-1 in the Swiss (ID round 4), beating Twin, Tron, and a third deck that I can't remember. I conceded to my top 4 opponent as I wasn't intending on attending the GP and thus didn't need the byes. The deck performed very well all day although I never got much use out of Blood Moon (even against Tron).
At the PPTQ, I lost round one to 8Rack which seems awful. I had never expected the matchup, although in fairness I could have won game 1 if my last four draws (while I had active Ascension) hadn't been land, land, land, Ascension. I beat GW Hatebears (game 3 double Pyromancer overwhelmed him), Tron, and Affinity. I then misplayed my way out of an easy win against Twin and thus knocked myself out of top eight contention. The final round I lost to Burn which is of course atrocious, although I did manage to win one game. I played this list in all three events:
4
Faithless Looting4
Gitaxian Probe4
Lightning Bolt4
Noxious Revival4
Serum Visions4
Sleight of Hand4
Thought Scour4
Visions from Beyond4
Manamorphose4
Pyromancer Ascension2
Cryptic Command1
Breeding Pool4
Island3
Misty Rainforest1
Mountain4
Scalding Tarn2
Steam Vents3
Sulfur FallsSideboard2
Ancient Grudge1
Hurkyl's Recall3
Pyroclasm2
Spellskite4
Young Pyromancer3
Blood Moon
I'm cutting Blood Moon for Spell Pierce, as it rarely did enough (even against Tron but that matchup is pretty good anyway). Pierce is a good all-around answer to a bunch of different problems. I may also shave 1 Pyromancer or 1 Grudge for another Hurkyl's, not sure about that yet. The deck has been performing really well for weeks now, I really only lose to terrible matchups (which are rare) or my own misplays (which sadly are more common).