Caltrops

Caltrops are tiny spiked weapons that you can throw at monsters and can stick on the floor. It will deal 2 hearts of damage each second and would make you go slow over them. If you throw it directly at an enemy it will deal 2.5 hearts of damage  and bounce off and stick on the floor. You can also pick them up after you throw them. Caltrops will be stackable and be crafted with 1 iron bar.