Champion of the Clachan is a rare Creature — Kithkin Knight card from Lorwyn Eclipsed (ECL), collector number 353. Current market price: $0.34 (foil $0.32), TCGplayer market prices via Scryfall.
Flash As an additional cost to cast this spell, behold a Kithkin and exile it. (Exile a Kithkin you control or a Kithkin card from your hand.) Other Kithkin you control get +1/+1. When this creature leaves the battlefield, return the exiled card to its owner's hand.