That list is just so awkward though. Like, you're playing with Serra's Guardian, which is a 6-mana 5/5 vigilant flying creature with no other relevant abilities. If it gets countered or dies to something like Cast Down, you're well behind. Against that your opponent could also be playing Doom Whisperer, which is cheaper, bigger, has trample, and can activate in response to a removal spell. You're also playing Light of the Legion, which has the same issues especially since the board is unlikely to stall in constructed.
Off the top of my head, among all the angels in standard there are only two I'd say are strong enough to attract me to the archetype: Lyra and Aurelia. Shalai is barely playable except in Selesnya, while Resplendent Angel is similar. I'd put Resplendent Angel in an angels deck because there aren't better options, but wouldn't build around it.
Sorry for being a spike
