Proliferating Purge is a 4-color (WUBG) Atraxa superfriends/control commander deck. Its main plan is to ramp early, control the board, then land Atraxa and planeswalker/counter-based payoffs to snowball value through proliferate.
Key synergies:
Atraxa, Praetors’ Voice and Deepglow Skate rapidly grow loyalty counters on planeswalkers.
Doubling Season, Vorinclex, Monstrous Raider, Oath of Teferi, and The Chain Veil let walkers enter with huge loyalty, activate multiple times, and often threaten ultimates immediately.
A heavy control shell of sweepers, spot removal, and counterspells keeps opponents contained while your engines develop.
Strong ramp and fixing plus card advantage pieces like Rhystic Study, Mystic Remora, Phyrexian Arena, and Sylvan Library keep the deck consistent.
It usually wins by locking up the game with repeated planeswalker value and ultimates, while Atraxa’s proliferate steadily pushes the board state out of reach.
Atraxa, Praetors' Voice