Dragon's Disciple is a uncommon Creature — Human Monk card from Adventures in the Forgotten Realms (AFR), collector number 13. Current market price: $0.27 (foil $0.31), TCGplayer market prices via Scryfall.
As this creature enters, you may reveal a Dragon card from your hand. If you do or if you control a Dragon, this creature enters with a +1/+1 counter on it. Dragons you control have ward {1}. (Whenever a Dragon you control becomes the target of a spell or ability an opponent controls, counter it unless that player pays {1}.)