The Mana RigCasting Cost: {3}Card Type: Legendary ArtifactCard Text: Whenever you cast a multicolored spell, create a tapped Powerstone token. (It's an artifact with ": Add . This mana can't be spent to cast a nonartifact spell.") {X}{X}{X}, : Look at the top X cards of your library. Put up to two of them into your hand and the rest on the bottom of your library in a random order.Artist: Zoltan Boros
: Add 
. This mana can't be spent to cast a nonartifact spell.")