Is Deepwood Denizen legal in Standard, Modern, and Commander?

Deepwood Denizen is legal in: Modern, Legacy, Vintage, Commander, Pauper, Historic.

What type of card is Deepwood Denizen?

Deepwood Denizen is a Creature — Elf Warrior. Its oracle text reads: "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. *"You didn't come all this way just to bother me, did you? Say your piece and be gone."* Power/Toughness: 3/2"