Dusk Form Lycanroc strikes a series of synchronized poses with its Trainer to build Z-Power. It then breaks the ground around it, causing shards of rocks to get thrown into the air and fly upwards. Dusk Form Lycanroc jumps up with the shards as they stop and then point towards the opponent, before Dusk Form Lycanroc and the shards shoot towards the opponent. Dusk Form Lycanroc lands on the ground behind the opponent as the shards strike them behind it.
Splintered Stormshards is the only move that can remove terrain effects without creating a terrain effect itself.
While the move's properties remain the same, the animation for Splintered Stormshards changes based on the form of Lycanroc using it; with the apparent time of day during the animation matching the Lycanroc's form.