Tormenting Spirit

[Weapon]

This hat is also a little severely hax when it comes to mobbing classes in that you recover 1 SP for every hit at a 100% chance. Bring it to juperos, grimtooth a mob of 40, gain +37 SP (and probably some HP) for every GT. By the time everything's dead, you'll probably be at full or near-full HP/SP.

The rideword hat can (often) have similar effects, but its SP siphon is not a 100% success rate.