Is Burrenton Bombardier legal in Standard, Modern, and Commander?

Burrenton Bombardier is legal in: Modern, Legacy, Vintage, Commander, Pauper.

Burrenton Bombardier

Q: What type of card is Burrenton Bombardier?

Burrenton Bombardier is a Creature — Kithkin Soldier. Its oracle text reads: "Flying Reinforce 2—{2}{W} ({2}{W}, Discard this card: Put two +1/+1 counters on target creature.) *The flasks provide ballast, a means of steering, and—with a little luck—a way to deliver ward-spells to cohorts below.* Power/Toughness: 2/2"