Is Benalish Commander legal in Standard, Modern, and Commander?

Benalish Commander is legal in: Modern, Legacy, Vintage, Commander.

What type of card is Benalish Commander?

Benalish Commander is a Creature — Human Soldier. Its oracle text reads: "Benalish Commander's power and toughness are each equal to the number of Soldiers you control. Suspend X—{X}{W}{W}. X can't be 0. Whenever a time counter is removed from this card while it's exiled, create a 1/1 white Soldier creature token. Power/Toughness: */*"