Banner of Kinship is a rare Artifact card from Foundations Promos (PFDN), collector number 127p. Current market price: $8.89 (foil $10.23), TCGplayer market prices via Scryfall.
As this artifact enters, choose a creature type. This artifact enters with a fellowship counter on it for each creature you control of the chosen type. Creatures you control of the chosen type get +1/+1 for each fellowship counter on this artifact.