Is Arctic Nishoba legal in Standard, Modern, and Commander?

Arctic Nishoba is legal in: Modern, Legacy, Vintage, Commander.

Arctic Nishoba

Q: What type of card is Arctic Nishoba?

Arctic Nishoba is a Creature — Cat Warrior. Its oracle text reads: "Trample Cumulative upkeep {G} or {W} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.) When this creature dies, you gain 2 life for each age counter on it."

Creature — Cat Warrior

Trample

Cumulative upkeep or (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)