Is Tetsuo, Imperial Champion legal in Standard, Modern, and Commander?

Tetsuo, Imperial Champion is legal in: Legacy, Vintage, Commander.

Tetsuo, Imperial Champion

Q: What type of card is Tetsuo, Imperial Champion?

Tetsuo, Imperial Champion is a Legendary Creature — Human Samurai. Its oracle text reads: "Whenever Tetsuo attacks, if it's equipped, choose one — • Tetsuo deals damage equal to the greatest mana value among Equipment attached to it to any target. • You may cast an instant or sorcery spell from your hand with mana value less than or equal to the greatest mana value among Equipment attached to Tetsuo without paying its mana cost. Power/Toughness: 3/3"

Legendary Creature — Human Samurai

Whenever Tetsuo attacks, if it's equipped, choose one —

• Tetsuo deals damage equal to the greatest mana value among Equipment attached to it to any target.

• You may cast an instant or sorcery spell from your hand with mana value less than or equal to the greatest mana value among Equipment attached to Tetsuo without paying its mana cost.

Power/Toughness: 3/3

Set Dominaria United Commander

Rarity Mythic Rare

Mana Value 3

Artist Lius Lasahido

Collector # 44

Scryfall