phyrexian mtg commander deck EDH | Tribal | Atraxa, Praetors' Voice except its an artifact in addition to its other types. What is the best/most optimal

And with a product all about traveling through space and time, its only fitting that the decks also have 10 new Planechase cards

Ravenous Squirrel has a similar ability to your commander that lets it grow as you sacrifice artifacts and creatures, and it has a sac outlet that gives you 1 life plus a card

This is no surprise, as Final Fantasy is already the best selling MTG set of all time, just a little over a month before its official release date

Its infinite with Spike Feeder and Kitchen Finks (alongside a sac outlet) but works as a synergy piece for lifegain, angel, and +1/+1 counter decks as well

Needing five of them to activate the ability is a lot, more than Persistent Petitioners, but less than Shadowborn Apostles