I want to love this deck, but I felt like I was struggling to fill out a solid list. I think one of the big things going for it is the semi-flash theme that you get near the top end. Sticking some cheap threats early and then using the later turns to hold up protection, tricks, and the flash creatures has some appeal.
Tragic Arrogance seems debatable and just seems like the general mistake I see used for a lot of creature focused decks. People play the wrath because it's good when they're behind, but I think ideally you'd rather focus build up of your own creatures and control the tempo of the match with cheap instants and the flash creatures. I'd be curious to find out if Hixus ends up being more than enough to play the "sweep" role while increasing your threat density. I won't push the point too hard though, because I know a lot of people are pretty seated on playing this way because it sometimes works, especially with the excuse of playing in a no sideboard environment. However, I will say Tragic Arrogance is a little more exciting than most wraths since you get some more control over it instead of a full hard sweep.
I'd love to test out
Soulblade Djinn since it pumps everything on your side, but that's entering the realm of turn 6+ plays. I almost feel he'd play better in the right kind of Izzet Thopter deck at the moment, but a single copy here could be alright. Might have to manipulate the deck a bit to trigger his prowess-like ability more often though. One idea I had when I browsed this color combination was using some of the enchantment removal spells. That also opened up the idea of playing
Blessed Spirits, but I really wish we had something closer to a
Pacifism in terms of cost (gimme
Temporal Isolation actually).
An enchantment focus could be an interesting tangent in some ways though, at least in terms of maybe utilizing
Heliod's Pilgrim to fetch something like
Claustrophobia in a pinch. Maybe even use
Nimbus Wings as a flying enabler. I don't know, it's something to consider but at the same time sort of disrupts the power of the flash theme.
It's somewhat a shame that blue is a major early color too. I think
Celestial Flare could've been interesting if it wasn't WW, otherwise I guess there is always
Reprisal which hinges more on how big opponents plan on getting. I also considered
Skyhunter Skirmisher because of the benefit alongside pump effects. Any thought on
Dauntless River Marshal, by the way? Cheap threat early and the ability is something to sink mana into later in the game. This guy and
Kytheon's Irregulars could aid in the game plan a bit, either stalling attacks or clearing the way for the rest of your team.
Small shout out to
Whirler Rogue as well. Not sure how deep you'd want to go at 4CMC, but it's certainly a quick way to get some bodies on the board especially since two have flying.
I'll probably test a few iterations of this deck over time, but part of me thinks this deck concept is waiting for an expansion or two to really take off.