Rage Extractor

({R/P} can be paid with either {R} or 2 life.) Whenever you cast a spell with {H} in its mana cost, this artifact deals damage equal to that spell's mana value to any target.

From Magic: The Gathering.

Open the interactive version on https://mythscribe.cloud/app/tcg/cards/cms6onlgoh817pb1h82t0r7s6.