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

Merrow Grimeblotter is legal in: Modern, Legacy, Vintage, Commander.

What type of card is Merrow Grimeblotter?

Merrow Grimeblotter is a Creature — Merfolk Wizard. Its oracle text reads: "{1}{U/B}, {Q}: Target creature gets -2/-0 until end of turn. ({Q} is the untap symbol.) *Grimeblotters spend so much time in the Dark Meanders that they're able to bring a piece with them wherever they go.* Power/Toughness: 2/2"