Deepwood Denizen is a common Creature — Elf Warrior card from Foundations Jumpstart (J25), collector number 648. Current market price: $0.25, TCGplayer market prices via Scryfall.
Vigilance (Attacking doesn't cause this creature to tap.) {5}{G}, {T}: Draw a card. This ability costs {1} less to activate for each +1/+1 counter on creatures you control.