Is Stangg, Echo Warrior legal in Standard, Modern, and Commander?

Stangg, Echo Warrior is legal in: Legacy, Vintage, Commander.

Stangg, Echo Warrior

Q: What type of card is Stangg, Echo Warrior?

Stangg, Echo Warrior is a Legendary Creature — Human Warrior. Its oracle text reads: "Whenever Stangg attacks, create Stangg Twin, a legendary 3/4 red and green Human Warrior creature token. It enters tapped and attacking. For each Aura and Equipment attached to Stangg, create a token that's a copy of it attached to Stangg Twin. Sacrifice all tokens created this way at the beginning of the next end step."

Legendary Creature — Human Warrior

Whenever Stangg attacks, create Stangg Twin, a legendary 3/4 red and green Human Warrior creature token. It enters tapped and attacking. For each Aura and Equipment attached to Stangg, create a token that's a copy of it attached to Stangg Twin. Sacrifice all tokens created this way at the beginning of the next end step.

Set Dominaria United Commander

Rarity Rare

Mana Value 4

Artist Randy Vargas

Collector # 42

Scryfall Gatherer