Is Shared Trauma legal in Standard, Modern, and Commander?

Shared Trauma is legal in: Legacy, Vintage, Commander.

Shared Trauma

Q: What type of card is Shared Trauma?

Shared Trauma is a Sorcery. Its oracle text reads: "Join forces — Starting with you, each player may pay any amount of mana. Each player mills X cards, where X is the total amount of mana paid this way."

Sorcery

Join forces — Starting with you, each player may pay any amount of mana. Each player mills X cards, where X is the total amount of mana paid this way.

Set Commander Anthology Volume II

Rarity Rare

Mana Value 1

Artist Clint Cearley

Collector # 76

Scryfall Gatherer