Fey thorn

Deal 1 piercing damage to target creature no save or roll for one action, bonus action, or reaction. Can bounce off a object, without dealing damage, once with distance traveled not exceeding 90ft.

At higher levels it deals 1 additional damage for each spell casting level the caster has taken.

At the 5th, 11th, and 17th level it gains one additional bounce off an object, without dealing damage, totaling with 4 bounces at level 17.