Elukron's Ice Prison

You place your hands on the ground and create three spikes of ice that rise from the ground beneath a target within range. Make a ranged spell attack for each shard. On a hit, the target takes 2d6 cold damage for each spike. If three or more spikes hit, the target must make a Dexterity saving throw or be restrained to the end of their turn.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, you create one additional spike for each slot level above 2nd.