Dread Spikes

Dread Spikes is a Black Magic spell found in Final Fantasy XI. It can be learnt by Dark Knights at level 71, and is the final spell learnt. When cast, the spell wil cover the player in spikes for 60 seconds, draining HP from enemies who use melee attacks against the player. It may be recast every 3 minutes for 78 MP. The spell does not work against undead, and will halt if half the player's maximun HP is absorbed.