mtg cards with a moon in the art Moonshadow Card - Art Series: Lorwyn Eclipsed Art by Franz Vohwinkel Commander Theory — Some of

That means legends like Kenrith, the Returned King with more color symbols than white are exluded

Jace is just a little less well suited to cube than he is constructed

He'll let his control cast massive spells for just five mana if all the colors are involved

For just 3 mana you've got a crazy Warrior token generator which will snowball out of control almost instantly, since those tokens can generate even more tokens

Nine Lives Nine Lives gives you the ability to withstand nine hits

The issue is even mono-black likely wants to run some colorless lands and Archenemys it is not so good that it is on its own worth building around