Is Outfitted Jouster legal in Standard, Modern, and Commander?

Outfitted Jouster is legal in: Historic.

Outfitted Jouster

Q: What type of card is Outfitted Jouster?

Outfitted Jouster is a Creature — Human Knight. Its oracle text reads: "When Outfitted Jouster enters, conjure a card named Steelclaw Lance and a card named Brawler's Plate onto the battlefield and attach them to Outfitted Jouster. If damage would be dealt to Outfitted Jouster while it's equipped, prevent that damage. When damage is prevented this way, sacrifice an Equipment attached to Outfitted Jouster. Power/Toughness: 2/2"

Creature — Human Knight

When Outfitted Jouster enters, conjure a card named Steelclaw Lance and a card named Brawler's Plate onto the battlefield and attach them to Outfitted Jouster.

If damage would be dealt to Outfitted Jouster while it's equipped, prevent that damage. When damage is prevented this way, sacrifice an Equipment attached to Outfitted Jouster.

Power/Toughness: 2/2

Set Alchemy: Wilds of Eldraine

Rarity Rare

Mana Value 4

Artist J.P. Targete

Collector # 22

Scryfall