Is Ancient Animus legal in Standard, Modern, and Commander?

Ancient Animus is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Pauper, Historic.

Ancient Animus

Q: What type of card is Ancient Animus?

Ancient Animus is an Instant. Its oracle text reads: "Put a +1/+1 counter on target creature you control if it's legendary. Then it fights target creature an opponent controls. (Each deals damage equal to its power to the other.) *Multani's mind grasped for consciousness as rage itself rebuilt his body.*"

Instant

Put a +1/+1 counter on target creature you control if it's legendary. Then it fights target creature an opponent controls. (Each deals damage equal to its power to the other.)

*Multani's mind grasped for consciousness as rage itself rebuilt his body.*

Set Commander Legends

Rarity Common

Mana Value 2

Artist Titus Lunter

Collector # 215

Scryfall