Champion of the Clachan (Lorwyn Eclipsed Promos #9p)

Creature — Kithkin Knight - {3}{W}
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.
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