Is Ichor Slick legal in Standard, Modern, and Commander?

Ichor Slick is legal in: Modern, Legacy, Vintage, Commander, Pauper.

What type of card is Ichor Slick?

Ichor Slick is a Sorcery. Its oracle text reads: "Target creature gets -3/-3 until end of turn. Cycling {2} ({2}, Discard this card: Draw a card.) Madness {3}{B} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)"