Is Pride Sovereign legal in Standard, Modern, and Commander?

Pride Sovereign is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Historic.

What type of card is Pride Sovereign?

Pride Sovereign is a Creature — Cat. Its oracle text reads: "This creature gets +1/+1 for each other Cat you control. {W}, {T}, Exert this creature: Create two 1/1 white Cat creature tokens with lifelink. (An exerted creature won't untap during your next untap step.)"