Is Stronghold Arena legal in Standard, Modern, and Commander?

Stronghold Arena is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Stronghold Arena

Q: What type of card is Stronghold Arena?

Stronghold Arena is an Enchantment. Its oracle text reads: "Kicker {G} and/or {W} (You may pay an additional {G} and/or {W} as you cast this spell.) When this enchantment enters, you gain 3 life for each time it was kicked. Whenever one or more creatures you control deal combat damage to a player, you may reveal the top card of your library and put it into your hand. If you do, you lose life equal to its mana value."

Enchantment

Kicker and/or (You may pay an additional and/or as you cast this spell.)

When this enchantment enters, you gain 3 life for each time it was kicked.

Whenever one or more creatures you control deal combat damage to a player, you may reveal the top card of your library and put it into your hand. If you do, you lose life equal to its mana value.

Set Dominaria United

Rarity Rare

Mana Value 2

Artist Alexander Mokhov

Collector # 110

Scryfall Gatherer