Is Galadhrim Brigade legal in Standard, Modern, and Commander?

Galadhrim Brigade is legal in: Legacy, Vintage, Commander.

What type of card is Galadhrim Brigade?

Galadhrim Brigade is a Creature — Elf Soldier. Its oracle text reads: "Squad {1}{G} (As an additional cost to cast this spell, you may pay {1}{G} any number of times. When this creature enters, create that many tokens that are copies of it.) Other Elves you control get +1/+1."

Galadhrim Brigade

Creature — Elf Soldier

Squad (As an additional cost to cast this spell, you may pay any number of times. When this creature enters, create that many tokens that are copies of it.)