Phyrexia: All Will Be One has shown us that New Phyrexia’s armies are filled with endless ranks of destructive, living weapons — but its most dangerous power remains its most simple: Phyrexian mana costs. Introduced in 2011’s New Phyrexia, at the culmination of the Phyrexian invasion of Mirrodin, Phyrexian mana allowed players to pay for spells with chunks of life …
