Is Kethek, Crucible Goliath legal in Standard, Modern, and Commander?

Kethek, Crucible Goliath is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Kethek, Crucible Goliath

Q: What type of card is Kethek, Crucible Goliath?

Kethek, Crucible Goliath is a Legendary Creature — Phyrexian Beast. Its oracle text reads: "At the beginning of your end step, you may sacrifice another creature. If you do, reveal cards from the top of your library until you reveal a nonlegendary creature card with lesser mana value, put it onto the battlefield, then put the rest on the bottom of your library in a random order. Power/Toughness: 4/4"

Legendary Creature — Phyrexian Beast

At the beginning of your end step, you may sacrifice another creature. If you do, reveal cards from the top of your library until you reveal a nonlegendary creature card with lesser mana value, put it onto the battlefield, then put the rest on the bottom of your library in a random order.

Power/Toughness: 4/4

Set Phyrexia: All Will Be One

Rarity Rare

Mana Value 4

Artist Zoltan Boros

Collector # 206

Scryfall