Is Aether Figment legal in Standard, Modern, and Commander?

Aether Figment is legal in: Modern, Legacy, Vintage, Commander.

What type of card is Aether Figment?

Aether Figment is a Creature — Illusion. Its oracle text reads: "Kicker {3} (You may pay an additional {3} as you cast this spell.) If this creature was kicked, it enters with two +1/+1 counters on it. This creature can't be blocked. Power/Toughness: 1/1"