Urza, Powerstone Prodigy

two generic mana one blue mana Legendary Creature — Human ArtificerPower and toughness1/3

Vigilance

one generic mana , tap this permanent : Draw a card, then discard a card.

Whenever you discard one or more artifact cards, create a tapped Powerstone token. This ability triggers only once each turn. (The token is an artifact with " tap this permanent : Add one colorless mana . This mana can't be spent to cast a nonartifact spell.")

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Showing The Brothers' War#69

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0.19 $

Foil 0.32 $

8 printings

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Urza, Powerstone Prodigy rulings

2022-10-14
Powerstone tokens are a kind of predefined token. Each one has the artifact subtype "Powerstone" and the ability ": Add . This mana can't be spent to cast a nonartifact spell."
2022-10-14
You can use the added by a Powerstone token on anything that isn't a nonartifact spell. This includes paying costs to activate abilities of both artifact and nonartifact permanents, paying ward costs, and so on.
2022-10-14
Although all the cards in The Brothers' War that create Powerstone tokens create a tapped Powerstone token, entering the battlefield tapped isn't part of the token's definition. Notably, if you create a token that is a copy of a Powerstone token, the token copy won't enter the battlefield tapped.