I think this card (WWR flyin angel) is definitely relevant to Modern at a minimum, simply for having a pseudo-snapcaster ability while being an aggressively costed 3/4 flyer. Dodging Lightning Bolt means it passes the rudimentary creature power-level test that Modern imposes. It might not be good enough, but damn, it's gotta be close. I don't know what deck wants it and it isn't a 'build around me' card per se but raw power level is better than something like Mantis Rider, which already sees a lot of play (mostly due to human status.)

I'd just like to point out that if this was printed 15 years ago, everyone would have fucking lost their shit at how much power-creep is in it.