can you buy individual cards on mtg arena Phyrexian | Promotional Acquiring Cards in the Magic:

But given the cards we are looking at, I figured I would veer away from my normal serious tones

Atraxa, Praetor's Voice When it comes to commanders, few are quite as iconic or powerful as the Phyrexian Angel Atraxa, Praetor's Voice

Vivid Grove

Blue: Moment of Truth, Change the Equation Green: Atraxas Fall, Seed of Hope Black: Collective Nightmare, Traumatic Revelation, Etched Familiar White: Surge of Salvation, Elspeths Smite, Infected Defector, Norns Inquisitor, Seal from Existence, Inspired Charge

Doing connected cards prevented us from balancing the colors, but as Set Boosters weren't being played in Limited, it wasn't considered a big deal