Old art.
Golems! Golems in my story are much like robots only instead they're made with magic energy. They follow programmed commands. Most golems have a central crystal which functions as a central control unit and a energy holding structure. Golems can only be destroyed by damaging the central crystal, damage to the outer structure won't do much.
These are spintop golems. Spintop golems are made of either a single or several spinning pieces. The central crystal is located at the top of the spintop golem. Spintop golems attack by simply running into it's target with it's spinning blades.

(this) spintop golem and art © Raikuen