Is Mishra, Claimed by Gix legal in Standard, Modern, and Commander?

Mishra, Claimed by Gix is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Mishra, Claimed by Gix

Q: What type of card is Mishra, Claimed by Gix?

Mishra, Claimed by Gix is a Legendary Creature — Phyrexian Human Artificer. Its oracle text reads: "Whenever you attack, each opponent loses X life and you gain X life, where X is the number of attacking creatures. If Mishra, Claimed by Gix and a creature named Phyrexian Dragon Engine are attacking, and you both own and control them, exile them, then meld them into Mishra, Lost to Phyrexia. It enters tapped and attacking. Power/Toughness: 3/5"

Legendary Creature — Phyrexian Human Artificer

Whenever you attack, each opponent loses X life and you gain X life, where X is the number of attacking creatures. If Mishra, Claimed by Gix and a creature named Phyrexian Dragon Engine are attacking, and you both own and control them, exile them, then meld them into Mishra, Lost to Phyrexia. It enters tapped and attacking.

Power/Toughness: 3/5

Set The Brothers' War

Rarity Mythic Rare

Mana Value 4

Artist Chris Rahn

Collector # 216

Scryfall