Is Stalwart Speartail legal in Standard, Modern, and Commander?

Stalwart Speartail is legal in: Historic.

Stalwart Speartail

Q: What type of card is Stalwart Speartail?

Stalwart Speartail is a Creature — Dinosaur. Its oracle text reads: "Enrage — Whenever Stalwart Speartail is dealt damage, other Dinosaurs you control and Dinosaur cards in your hand and library perpetually get +1/+1. Whenever Stalwart Speartail attacks, Stalwart Speartail deals 1 damage to each creature and each planeswalker. Power/Toughness: 4/4"