Is Tazri, Stalwart Survivor legal in Standard, Modern, and Commander?

Tazri, Stalwart Survivor is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Tazri, Stalwart Survivor

Q: What type of card is Tazri, Stalwart Survivor?

Tazri, Stalwart Survivor is a Legendary Creature — Human Warrior. Its oracle text reads: "Each creature you control has "{T}: Add one mana of any of this creature's colors. Spend this mana only to activate an ability of a creature. Activate only if this creature has another activated ability." {W}{U}{B}{R}{G}, {T}: Mill five cards. Put all creature cards with activated abilities that aren't mana abilities from among the milled cards into your hand. Power/Toughness: 3/3"

Legendary Creature — Human Warrior

Each creature you control has ": Add one mana of any of this creature's colors. Spend this mana only to activate an ability of a creature. Activate only if this creature has another activated ability."