Is Defiler of Instinct legal in Standard, Modern, and Commander?

Defiler of Instinct is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Historic.

What type of card is Defiler of Instinct?

Defiler of Instinct is a Creature — Phyrexian Kavu. Its oracle text reads: "First strike As an additional cost to cast red permanent spells, you may pay 2 life. Those spells cost {R} less to cast if you paid life this way. This effect reduces only the amount of red mana you pay. Whenever you cast a red permanent spell, this creature deals 1 damage to any target."

Defiler of Instinct

Creature — Phyrexian Kavu

First strike

As an additional cost to cast red permanent spells, you may pay 2 life. Those spells cost less to cast if you paid life this way. This effect reduces only the amount of red mana you pay.

Whenever you cast a red permanent spell, this creature deals 1 damage to any target.

Set Dominaria United

Rarity Rare

Mana Value 4

Artist Steven Belledin

Collector # 119

Scryfall Gatherer