Soul Echo

This enchantment enters with X echo counters on it. You don't lose the game for having 0 or less life. At the beginning of your upkeep, sacrifice this enchantment if there are no echo counters on it. Otherwise, target opponent may choose that for each 1 damage that would be dealt to you until your next upkeep, you

remove an echo counter from this enchantment instead.

From Magic: The Gathering.

Open the interactive version on https://mythscribe.cloud/app/tcg/cards/cms6ome0igba1pb1h19tg32tx.