Is Solid Ground legal in Standard, Modern, and Commander?

Solid Ground is legal in: Legacy, Vintage, Commander, Historic.

Solid Ground

Q: What type of card is Solid Ground?

Solid Ground is an Enchantment. Its oracle text reads: "When this enchantment enters, earthbend 3. (Target land you control becomes a 0/0 creature with haste that's still a land. Put three +1/+1 counters on it. When it dies or is exiled, return it to the battlefield tapped.) If one or more +1/+1 counters would be put on a permanent you control, that many plus one +1/+1 counters are put on it instead."

Enchantment

When this enchantment enters, earthbend 3. (Target land you control becomes a 0/0 creature with haste that's still a land. Put three +1/+1 counters on it. When it dies or is exiled, return it to the battlefield tapped.)

If one or more +1/+1 counters would be put on a permanent you control, that many plus one +1/+1 counters are put on it instead.

Set Avatar: The Last Airbender Eternal

Rarity Uncommon

Mana Value 4

Artist Jason Kiantoro

Collector # 142

Scryfall