Currently there's very little reason to run the following heroic zones more than once (if even that). They are very short level 50 instances but they offer a reasonable amount of challenge in both getting to their zone-lines and the mechanics within. The Sanctum of Fear even requires some farming before entering it because you need 4 golem hearts. However, these zones offer basically nothing in terms of rewards other than quest updates. The only fabled items dropped within are weapons which no one will use due to prismatics and generic armor pieces without any rare/unique stats/effects. I would recommend enhancing these loot tables in three ways to encourage players to form groups and replay this content. First, allow the final boss encounters to drop an item from the generic level 50 legendary pool by default. One of many decent items could drop, if the whole generic pool is available. Second, give each encounter a new unique fabled drop that has a very low chance to drop instead - like a 3-4% chance. Lastly, remove the useless existing items from their pools such as 2-handed weapons and treasured items no one will ever use. The Sanctum of Fear (Final Boss: Fright) Fabled suggestion: Heart of Fright - A charm with a small multi-attack bonus. Miragul's Menagerie (Final Boss: Myrgoth) Fabled suggestion: Miragul's Magical Manticore Mantle - A cloak with a small bonus to resistances The Oratorium of Thyr (Final Boss: Flame Lord Thyr) Fabled suggestion: Royal Band of Thyr - A ring with a small max HP bonus The Bastion of Flames (Final Boss: Efreeti Lord Djarn) Fabled suggestion: Vacant Bottle of the Efreeti Lord - A charm with a small reuse speed bonus. These are just ideas off the top of my head that seem theme/era appropriate. These are high value blue stats on item slots they aren't typically found on. This should, in my mind, be good motivation to get groups interested in farming this content further expanding the heroic content available for level 50s. At the same time, I don't think these proposed items are too strong to cause any unbalanced. These zones all have lock-out timers, so you can only attempt them so many times each day.