Prior to an official Japanese June 30 video
introducing six new Pokemon for Pokemon Sun & Moon
, images of Tapukoko, Charjabug, Vikavolt, Drampa, Bruxish, Cutiefly, and Togedemaru were released online. See screenshots here.
A screenshot of Tapukoko, an Electric/Fairy Pokemon with the ability "Elec Maker," which automatically turns the field into an electric terrain, according to Serebii.net.