Is Solphim, Mayhem Dominus legal in Standard, Modern, and Commander?

Solphim, Mayhem Dominus is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Solphim, Mayhem Dominus

Q: What type of card is Solphim, Mayhem Dominus?

Solphim, Mayhem Dominus is a Legendary Creature — Phyrexian Horror. Its oracle text reads: "If a source you control would deal noncombat damage to an opponent or a permanent an opponent controls, it deals double that damage to that player or permanent instead. {1}{R/P}{R/P}, Discard two cards: Put an indestructible counter on Solphim. ({R/P} can be paid with either {R} or 2 life.)"

Legendary Creature — Phyrexian Horror

If a source you control would deal noncombat damage to an opponent or a permanent an opponent controls, it deals double that damage to that player or permanent instead.

, Discard two cards: Put an indestructible counter on Solphim. ( can be paid with either or 2 life.)