Warren Weirding is a common Kindred Sorcery — Goblin card from Modern Masters (MMA), collector number 104. Current market price: $0.25 (foil $0.25), TCGplayer market prices via Scryfall.
Target player sacrifices a creature of their choice. If a Goblin is sacrificed this way, that player creates two 1/1 black Goblin Rogue creature tokens, and those tokens gain haste until end of turn.