Is Neverwinter Hydra legal in Standard, Modern, and Commander?

Neverwinter Hydra is legal in: Legacy, Vintage, Commander.

Neverwinter Hydra

Q: What type of card is Neverwinter Hydra?

Neverwinter Hydra is a Creature — Hydra. Its oracle text reads: "As this creature enters, roll X d6. It enters with a number of +1/+1 counters on it equal to the total of those results. Trample Ward {4} (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {4}.)"