Is Endrider Catalyzer legal in Standard, Modern, and Commander?

Endrider Catalyzer is legal in: Standard, Modern, Pioneer, Legacy, Vintage, Commander, Pauper, Historic.

Endrider Catalyzer

Q: What type of card is Endrider Catalyzer?

Endrider Catalyzer is a Creature — Human Warrior. Its oracle text reads: "Start your engines! (If you have no speed, it starts at 1. It increases once on each of your turns when an opponent loses life. Max speed is 4.) Max speed — {T}: Add {R}{R}."