Is Phyrexian Unlife legal in Standard, Modern, and Commander?

Phyrexian Unlife is legal in: Modern, Legacy, Vintage, Commander, Historic.

Phyrexian Unlife

Q: What type of card is Phyrexian Unlife?

Phyrexian Unlife is an Enchantment. Its oracle text reads: "You don't lose the game for having 0 or less life. As long as you have 0 or less life, all damage is dealt to you as though its source had infect. (Damage is dealt to you in the form of poison counters.)"

Enchantment

You don't lose the game for having 0 or less life.

As long as you have 0 or less life, all damage is dealt to you as though its source had infect. (Damage is dealt to you in the form of poison counters.)

Set New Phyrexia

Rarity Rare

Mana Value 3

Artist Jason Chan

Collector # 18

Scryfall Gatherer