Naila, The Dream Wanderer

Whenever one or more nontoken creatures enter the battlefield, create a 1/1 Ink Drop creature token.
(It has "{2}: Sacrifice another creature. this creature gains attack and toughness equal to the sacrificed creature’s. This creature gains the colors and creature types of creatures sacrificed this way in addition to its other colors and types.")
{7}:{t}, if Naila, The Dream Wanderer is equipped with a Legendary equipment artifact named Pen of Paratheo, exile both cards and transform Naila, T