Is Mythos of Illuna legal in Standard, Modern, and Commander?

Mythos of Illuna is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Mythos of Illuna

Q: What type of card is Mythos of Illuna?

Mythos of Illuna is a Sorcery. Its oracle text reads: "Create a token that's a copy of target permanent. If {R}{G} was spent to cast this spell, instead create a token that's a copy of that permanent, except the token has "When this token enters, if it's a creature, it fights up to one target creature you don't control.""

Sorcery

Create a token that's a copy of target permanent. If was spent to cast this spell, instead create a token that's a copy of that permanent, except the token has "When this token enters, if it's a creature, it fights up to one target creature you don't control."