Survey Mechan

Flying Hexproof (This creature can't be the target of spells or abilities your opponents control.) {10}, Sacrifice this creature: It deals 3 damage to any target. Target player draws three cards and gains 3 life. This ability costs {X} less to activate, where X is the number of differently named lands you control.

From Magic: The Gathering.

Open the interactive version on https://mythscribe.cloud/app/tcg/cards/cms6ohue9cu6ppb1huuf3pxij.