Is Doomsday legal in Standard, Modern, and Commander?

Doomsday is legal in: Legacy, Vintage, Commander.

Doomsday

Q: What type of card is Doomsday?

Doomsday is a Sorcery. Its oracle text reads: "Search your library and graveyard for five cards and exile the rest. Put the chosen cards on top of your library in any order. You lose half your life, rounded up."

Sorcery

Search your library and graveyard for five cards and exile the rest. Put the chosen cards on top of your library in any order. You lose half your life, rounded up.

Set Masters 25

Rarity Mythic Rare

Mana Value 3

Artist Noah Bradley

Collector # 88

Scryfall Gatherer