Is Rain of Riches legal in Standard, Modern, and Commander?

Rain of Riches is legal in: Legacy, Vintage, Commander.

Rain of Riches

Q: What type of card is Rain of Riches?

Rain of Riches is an Enchantment. Its oracle text reads: "When this enchantment enters, create two Treasure tokens. The first spell you cast each turn that mana from a Treasure was spent to cast has cascade. (When you cast the spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)"

Enchantment

When this enchantment enters, create two Treasure tokens.

The first spell you cast each turn that mana from a Treasure was spent to cast has cascade. (When you cast the spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)

Set Outlaws of Thunder Junction Commander

Rarity Rare

Mana Value 5

Artist Evyn Fong

Collector # 177

Scryfall Gatherer