Is Old-Growth Troll legal in Standard, Modern, and Commander?

Old-Growth Troll is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Old-Growth Troll

Q: What type of card is Old-Growth Troll?

Old-Growth Troll is a Creature — Troll Warrior. Its oracle text reads: "Trample When Old-Growth Troll dies, if it was a creature, return it to the battlefield. It's an Aura enchantment with enchant Forest you control and "Enchanted Forest has '{T}: Add {G}{G}' and '{1}, {T}, Sacrifice this land: Create a tapped 4/4 green Troll Warrior creature token with trample.'" Power/Toughness: 4/4"

Creature — Troll Warrior

Trample

When Old-Growth Troll dies, if it was a creature, return it to the battlefield. It's an Aura enchantment with enchant Forest you control and "Enchanted Forest has ': Add ' and ', , Sacrifice this land: Create a tapped 4/4 green Troll Warrior creature token with trample.'"