all will be one mtg card list Collecting Phyrexia: The Invasion Tree broke through the Blind Eternities and sent Phyrexian perfection coursing across the Multiverse. Phyrexia: All Will Be One

It's also somewhat usable as a sacrifice fodder that just pops back

IV Oblivion Each opponent sacrifices a creature of their choice and loses 3 life

Well, thats what Enduring Angel aims to do

This is an incredibly useful card to use early when there aren't many cards in the player's graveyard, so they can increase the chances they get what they want

Planeswalkers like Elspeth, Storm Slayer, Elspeth, Knight-Errant, and The Wandering Emperor usually complement a creature strategy well by pumping your creatures, giving evasion, or destroying opposing creatures

Sacrificing things to Greyfax is just one option, you could throw them to Commissar Serverina Raine instead for life and cards, or to The Golden Throne for mana