Shield Of Heroes

Modifies ac by -50 continuous.

Bases: 10-12
Levels: 50-52
Weight: 10
Area: Shadow Keep
Mob: Paladin's Ghost

Portal to "rot cor" and walk northwest until you get to the waterfall. There is an invis key in the pool, grab it and unlock north to get to the invis Paladin's Ghost. Also, you can just bash the door in.