Is Aether Revolt legal in Standard, Modern, and Commander?

Aether Revolt is legal in: Modern, Legacy, Vintage, Commander, Historic.

Aether Revolt

Q: What type of card is Aether Revolt?

Aether Revolt is an Enchantment. Its oracle text reads: "Revolt — As long as a permanent left the battlefield under your control this turn, if a source you control would deal noncombat damage to an opponent or a permanent an opponent controls, it deals that much damage plus 2 instead. Whenever you get one or more {E}, this enchantment deals that much damage to any target."

Enchantment

$0.32 ↗Commander, Modern

Revolt — As long as a permanent left the battlefield under your control this turn, if a source you control would deal noncombat damage to an opponent or a permanent an opponent controls, it deals that much damage plus 2 instead.

Whenever you get one or more , this enchantment deals that much damage to any target.