The Ruinous Powers
Market price
- Near Mint
- $1.38
- Lightly Played
- $1.42
- Moderately Played
- $1.45
- Heavily Played
- $1.19
- Near Mint
- $1.38
- Lightly Played
- $1.42
- Moderately Played
- $1.45
- Heavily Played
- $1.19
Buy
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At the beginning of your upkeep, choose an opponent at random. Exile the top card of that player's library. Until end of turn, you may play that card and you may spend mana as though it were mana of any color to cast it. When you cast a spell this way, its owner loses life equal to its mana value.
Illustrated by Lie Setiawan
Rulings (2)
Oct 7, 2022
Use the mana value of the spell as it exists on the stack (or last existed on the stack, if it's been removed) to determine how much life is lost. If there is an 
in that spell's cost, include the value chosen for X to determine its mana value.
Oct 7, 2022
You must follow all normal timing rules when casting a spell or playing a land using the permission granted by Ruinous Powers.
