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

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

Mythos of Snapdax

Q: What type of card is Mythos of Snapdax?

Mythos of Snapdax is a Sorcery. Its oracle text reads: "Each player chooses an artifact, a creature, an enchantment, and a planeswalker from among the nonland permanents they control, then sacrifices the rest. If {B}{R} was spent to cast this spell, you choose the permanents for each player instead."

Sorcery

Each player chooses an artifact, a creature, an enchantment, and a planeswalker from among the nonland permanents they control, then sacrifices the rest. If was spent to cast this spell, you choose the permanents for each player instead.