Which of You Burns Brightest? is a common Scheme card from Archenemy Schemes (OARC), collector number 42★. Current market price: $5.32, TCGplayer market prices via Scryfall.
When you set this scheme in motion, you may pay {X}. If you do, this scheme deals X damage to target opponent or planeswalker and each creature that player or that planeswalker's controller controls.