
As long as this artifact is untapped, each player chooses artifact, creature, or land during their untap step. That player can untap only permanents of the chosen type this step.
Storage Matrix has 3 printings, first in Urza's Destiny (1999). EDHREC ranks it #13,867 among Commander cards. It appears most in Urza, Lord High Artificer decks (1,683 on EDHREC). It has 3 official rulings.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.