A glimmering spear of  ice streaks toward a target within range  Make a ranged spell attack against the target. On a hit, the target takes 7d6 cold damage immediately and has its speed reduced by 15 feet until the start of your next turn. The target also may not dash during this period.

At Higher Levels. For every 2 levels above 3rd level that you cast this spell, an additional spear is launched, behaving the same as the original spear but dealing only 3d6 damage. Additional spears require a separate attack roll. You may choose a target for the additional spears.