Is Grim Contest legal in Standard, Modern, and Commander?

Grim Contest is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Pauper.

Grim Contest

Q: What type of card is Grim Contest?

Grim Contest is an Instant. Its oracle text reads: "Choose target creature you control and target creature an opponent controls. Each of those creatures deals damage equal to its toughness to the other. *The invader hoped he could survive the beast's jaws and emerge through its rotting skin.*"

Instant

Choose target creature you control and target creature an opponent controls. Each of those creatures deals damage equal to its toughness to the other.

*The invader hoped he could survive the beast's jaws and emerge through its rotting skin.*

Set Fate Reforged

Rarity Common

Mana Value 3

Artist Phill Simmer

Collector # 153

Scryfall