Legendary Creature — Azra Warlock
Kels, Fight Fixer
Menace Whenever you sacrifice a creature, you may pay {U/B}. If you do, draw a card. ({U/B} can be paid with either {U} or {B}.) {1}, Sacrifice a creature: Kels gains indestructible until end of turn.
From Magic: The Gathering.
Exact printings
Open the interactive version on https://mythscribe.cloud/app/tcg/cards/cms6ohym3cx1jpb1h85wgpodq.