Is Kithkeeper legal in Standard, Modern, and Commander?

Kithkeeper is legal in: Standard, Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Kithkeeper

Q: What type of card is Kithkeeper?

Kithkeeper is a Creature — Elemental. Its oracle text reads: "Vivid — When this creature enters, create X 1/1 green and white Kithkin creature tokens, where X is the number of colors among permanents you control. Tap three untapped creatures you control: This creature gets +3/+0 and gains flying until end of turn."

Creature — Elemental

$0.14 ↗20 similarCommander, Modern

Vivid — When this creature enters, create X 1/1 green and white Kithkin creature tokens, where X is the number of colors among permanents you control.

Tap three untapped creatures you control: This creature gets +3/+0 and gains flying until end of turn.

Set Lorwyn Eclipsed

Rarity Uncommon

Mana Value 7

Artist Filip Burburan

Collector # 23