Idol Of Oblivion Masters Of Evil makes a ton of tokens each turn, so Idol Of Oblivion is almost always active, and drawing cards is always going to be strong so that you never run out of cards in your hand to play
It's also an 8/8 with trample, which is very nice no matter how you have to play it
Aerial Surveyor It isn't precisely an Archaeomancer's Map or Keeper of the Accord, but Aerial Surveyor is still great ramp in the right deck
Extra turns give you extra activations of your walkers with all the other bells and whistles that come with taking extra turns
Champions teases us with cool spells and interesting creatures, but most of them arent powerful enough to make the cut outside of sealed deck or draft
A shared planar deck must contain at least 40 cards, or at least 10x the number of players in the game, whichever number is smaller