Is Veiled Serpent legal in Standard, Modern, and Commander?

Veiled Serpent is legal in: Legacy, Vintage, Commander, Pauper.

Veiled Serpent

Q: What type of card is Veiled Serpent?

Veiled Serpent is an Enchantment. Its oracle text reads: "When an opponent casts a spell, if this permanent is an enchantment, it becomes a 4/4 Serpent creature with "This creature can't attack unless defending player controls an Island." Cycling {2} ({2}, Discard this card: Draw a card.)"

Enchantment

When an opponent casts a spell, if this permanent is an enchantment, it becomes a 4/4 Serpent creature with "This creature can't attack unless defending player controls an Island."

Cycling (, Discard this card: Draw a card.)

Set Dominaria Remastered

Rarity Common

Mana Value 3

Artist Bob Eggleton

Collector # 72

Scryfall Gatherer