Justiciar's Greatshield is a rare Shield that allows the wielder to cast Darkness Cloak and gain advantage on Perception checks.
It's never the shield that kills you - but hearing your frantic steel thudding uselessly against this reinforced oak in the darkness is a good sign the end is near.
Properties
+2
Armour Class
Shields 
Rarity: Rare
Weight: 2.7 kg / 5.4 lb
Price: 300 gp
Special
The wearer of this item gains: One per Short Rest the user can cast Darkness Cloak
Advantage on Perception ChecksWhere to find
Looted from L in the Gauntlet of Shar