Is Cephalid Inkshrouder legal in Standard, Modern, and Commander?

Cephalid Inkshrouder is legal in: Legacy, Vintage, Commander.

Cephalid Inkshrouder

Q: What type of card is Cephalid Inkshrouder?

Cephalid Inkshrouder is a Creature — Octopus. Its oracle text reads: "Discard a card: This creature gains shroud until end of turn and can't be blocked this turn. (A creature with shroud can't be the target of spells or abilities.)"

Creature — Octopus

Discard a card: This creature gains shroud until end of turn and can't be blocked this turn. (A creature with shroud can't be the target of spells or abilities.)

Set Judgment

Rarity Uncommon

Mana Value 3

Artist Tony Szczudlo

Collector # 36

Scryfall Gatherer