Name:Storage Matrix
ManaCost:3
Types:Artifact
S:Mode$ Continuous | Affected$ Player | AddKeyword$ OnlyUntapChosen:Artifact,Creature,Land | CheckSVar$ X | SVarCompare$ EQ1 | Description$ As long as CARDNAME is untapped, each player chooses artifact, creature, or land during his or her untap step. That player can untap only permanents of the chosen type this step.
SVar:X:Count$Valid Card.Self+untapped
SVar:RemAIDeck:True
SVar:RemRandomDeck:True
SVar:Picture:http://www.wizards.com/global/images/magic/general/storage_matrix.jpg
Oracle:As long as Storage Matrix is untapped, each player chooses artifact, creature, or land during his or her untap step. That player can untap only permanents of the chosen type this step.