Currently, it's off the charts
Celestial Purge and Eight-and-a-Half-Tails give white a lot of space to play around with in this theme, but what about poor green
For one mana, it deals with any threat, combo, hate piece, or key card at instant-speed and for a very low cost, offering answers to permanents like Deafening Silence, Pithing Needle, Rest in Peace, High Noon and others for a very low cost in addition to disrupting combos like Omniscience with ease
Whats better than drawing the perfect answer
Since all of these cards require a lot of mana, you will probably see Phylath only in ramp decks
Subsequently, while one of the weird decks out there, Shadowborn Apostle-themed EDH decks are rather beloved