Sinkhole Surveyor is a rare Creature — Bird Scout card from Tarkir: Dragonstorm Promos (PTDM), collector number 93p. Current market price: $0.37 (foil $0.41), TCGplayer market prices via Scryfall.
Flying Whenever this creature attacks, you lose 1 life and this creature endures 1. (Put a +1/+1 counter on it or create a 1/1 white Spirit creature token.)