A common way to build Atraxa is to beef the deck up with planeswalkers. When you add them into the mix and base the deck around walkers, it is known as "Superfriends." The addition of planeswalkers makes the combo possibilities endless. A few great superfriends lists can be found on the EDHREC website.

How many lands should an Atraxa deck have?

Based on this table, the average Atraxa deck falls between a tournament deck having 20 and 21 lands, which means over 30% of the time you won't have four lands by Turn 4. There is an awful lot of your immediate future hinging on drawing that Arcane Signet or Cultivate!

Is Atraxa a good commander?

Atraxa as Commander

One of the best commanders in the entire game is Atraxa, Praetors' Voice, a 4/4 angel horror with flying, vigilance, deathtouch, lifelink, and proliferate.