Is Kinsbaile Aspirant legal in Standard, Modern, and Commander?

Kinsbaile Aspirant is legal in: Standard, Modern, Pioneer, Legacy, Vintage, Commander, Historic.

What type of card is Kinsbaile Aspirant?

Kinsbaile Aspirant is a Creature — Kithkin Citizen. Its oracle text reads: "As an additional cost to cast this spell, behold a Kithkin or pay {2}. (To behold a Kithkin, choose a Kithkin you control or reveal a Kithkin card from your hand.) Whenever another creature you control enters, this creature gets +1/+1 until end of turn."

Kinsbaile Aspirant

Creature — Kithkin Citizen

As an additional cost to cast this spell, behold a Kithkin or pay . (To behold a Kithkin, choose a Kithkin you control or reveal a Kithkin card from your hand.)