Is Tail Swipe legal in Standard, Modern, and Commander?

Tail Swipe is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Tail Swipe

Q: What type of card is Tail Swipe?

Tail Swipe is an Instant. Its oracle text reads: "Choose target creature you control and target creature you don't control. If you cast this spell during your main phase, the creature you control gets +1/+1 until end of turn. Then those creatures fight each other. (Each deals damage equal to its power to the other.)"

Instant

Choose target creature you control and target creature you don't control. If you cast this spell during your main phase, the creature you control gets +1/+1 until end of turn. Then those creatures fight each other. (Each deals damage equal to its power to the other.)

Set Dominaria United

Rarity Uncommon

Mana Value 1

Artist Ângelo Bortolini

Collector # 182

Scryfall