Square Enix has released the trailer for I Am Setsuna. The two-minute video shows some segments of the story, but most importantly, it showcases the game's battle system, which will be available for Playstation 4 and PC.
The battles in I Am Setsuna are turn-based and inspired by Chrono Trigger. Characters have Techs, special abilities they can employ, and can work with other allies to form a team.
Some of the abilities used in the trailer are X-Strike, a Team Combo performed by two characters, and ground and aerial Strike, Charge, Cross Cutter, Cyclone, and Demi Techs.
Source: Siliconera