Unerring Strike

You extend your hand and point a finger at a target in range. Your magic grants you a brief insight into the target's defenses. On your next turn, you can roll a d6 and add the number rolled to your first attack roll against the target, provided that this spell hasn't ended.

If the attack hits you deal an extra 1d6 damage. Creatures immune to criticals are immune to this damage.

This spell's damage increases by 1d6 when you reach 5th level (2d6), 11th level (3d6), and 17th level (4d6).