Is Akki Battle Squad legal in Standard, Modern, and Commander?

Akki Battle Squad is legal in: Legacy, Vintage, Commander.

Akki Battle Squad

Q: What type of card is Akki Battle Squad?

Akki Battle Squad is a Creature — Goblin Samurai. Its oracle text reads: "Whenever one or more modified creatures you control attack, untap all modified creatures you control. After this phase, there is an additional combat phase. This ability triggers only once each turn. (Equipment, Auras you control, and counters are modifications.)"

Creature — Goblin Samurai

Whenever one or more modified creatures you control attack, untap all modified creatures you control. After this phase, there is an additional combat phase. This ability triggers only once each turn. (Equipment, Auras you control, and counters are modifications.)

Set Neon Dynasty Commander

Rarity Rare

Mana Value 6

Artist Steve Prescott

Collector # 18

Scryfall Gatherer