Enchantment

Dark Suspicions

Dark Suspicions trading card
Enchantment2 exact printings

At the beginning of each opponent's upkeep, that player loses X life, where X is the number of cards in that player's hand minus the number of cards in your hand.

From Magic: The Gathering.

Exact printings

Open the interactive version on https://mythscribe.cloud/app/tcg/cards/cms6on7jhgxd7pb1hzhbcs19h.