Keen-Eyed Curator is a rare Creature — Raccoon Scout card from Bloomburrow (BLB), collector number 322. Current market price: $2.38 (foil $3.34), TCGplayer market prices via Scryfall.
As long as there are four or more card types among cards exiled with this creature, it gets +4/+4 and has trample. {1}: Exile target card from a graveyard.