Golden-Scale Aeronaut is a common Creature — Dwarf Pilot card from March of the Machine (MOM), collector number 15. Current market price: $0.11 (foil $0.13), TCGplayer market prices via Scryfall.
Backup 1 (When this creature enters, put a +1/+1 counter on target creature. If that's another creature, it gains the following ability until end of turn.) Flying