Avacyn sees heavy play in white reanimator decks and angel Commander builds, where the goal is to protect a valuable board state and swing freely
Ruby/Sapphire has been in the top handful of decks since Rise of the Floodborn, and has made gains every set
Heres what each of them does
(You may cast cards from your graveyard for their escape cost.) If The Master of Keys is no longer on the battlefield when its second ability resolves, you'll still mill twice X cards
Everybodys got their tuned decks led by Korvold, Alela, Prosper, Atraxa, what-have-you, and Im the guy that shows up with Boris Devilboon and wont shut up about how Jesper Myrfors refused to draw me a minor demon token in 2013
Shambling Remains Avatar of Discord Pyre Zombie Void Spike Jester Goblin Deathraiders Sarkhan the Mad Bituminous Blast Bladewing the Risen Blazing Specter Demigod of Revenge Igneous Pouncer Monstrous Carabid Torrent of Souls Wreaking Ball Wort, Boggart Auntie 10