The Ruinous Powers (Warhammer 40,000 Commander #139★)

The Ruinous Powers {2}{B}{R}

Enchantment

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

Standard
Alchemy
Pioneer
Explorer
Modern
Historic
Legacy
Brawl
Vintage
Timeless
Commander
Pauper
Oathbreaker
Penny
Notes and Rules Information for The Ruinous Powers:
  • You must follow all normal timing rules when casting a spell or playing a land using the permission granted by Ruinous Powers. (2022-10-07)
  • 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 {X} in that spell's cost, include the value chosen for X to determine its mana value. (2022-10-07)