Is Eldrazi Mimic legal in Standard, Modern, and Commander?

Eldrazi Mimic is legal in: Modern, Pioneer, Legacy, Vintage, Commander.

Eldrazi Mimic

Q: What type of card is Eldrazi Mimic?

Eldrazi Mimic is a Creature — Eldrazi. Its oracle text reads: "Whenever another colorless creature you control enters, you may change this creature's base power and toughness to that creature's power and toughness until end of turn."

Creature — Eldrazi

Whenever another colorless creature you control enters, you may change this creature's base power and toughness to that creature's power and toughness until end of turn.

Set Oath of the Gatewatch

Rarity Rare

Mana Value 2

Artist Craig J Spearing

Collector # 2

Scryfall Gatherer