Alchemist's Assistant is a uncommon Creature — Monkey card from Tarkir: Dragonstorm (TDM), collector number 71. Current market price: $0.26 (foil $0.27), TCGplayer market prices via Scryfall.
Lifelink Renew — {1}{B}, Exile this card from your graveyard: Put a lifelink counter on target creature. Activate only as a sorcery.