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Sibling Rivalry
Sorcery
common
Gain control of target artifact or creature until end of turn. Untap it. It gains haste until end of turn. Create a tapped Powerstone token. (It's an artifact with ": Add . This mana can't be spent to cast a nonartifact spell.")
Semantic Tags
Attacks quickly and deals damage efficiently. Includes haste, double strike, first strike, prowess, and cards that grant these.
A permanent with a repeatable activated ability that converts excess mana into value.
Accelerates mana production beyond the one-land-per-turn baseline. Umbrella tag — see ramp subtypes for land ramp, mana dorks, mana rocks, and rituals.
Creates creature tokens, Treasure tokens, Food tokens, Clue tokens, or other token types.
Format Legality
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Printings (1)
| Set | Rarity | TCGplayer | Card Kingdom | Cardmarket |
|---|---|---|---|---|
| The Brothers' War#152 | common | · | · | · |
Rulings
Powerstone tokens are a kind of predefined token. Each one has the artifact subtype "Powerstone" and the ability "{T}: Add {C}. This mana can't be spent to cast a nonartifact spell."
You can use the {C} 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.
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.