Is Merrow Skyswimmer legal in Standard, Modern, and Commander?

Merrow Skyswimmer is legal in: Standard, Modern, Pioneer, Legacy, Vintage, Commander, Pauper, Historic.

What type of card is Merrow Skyswimmer?

Merrow Skyswimmer is a Creature — Merfolk Soldier. Its oracle text reads: "Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) Flying, vigilance When this creature enters, create a 1/1 white and blue Merfolk creature token."