You fling a massive icicle toward a target of your choice within range. Make a ranged spell attack against the target. On a hit, the target takes 3d8 cold damage. If the target is also adjacent to a wall, or a similar large, immobile object, it may also be pinned to that surface on its next turn. At the beginning of its turn, the target can make a Strength saving throw. On a failed save, it has a speed of 0 until the start of its next turn.