A problem that is plaguing the community would be the inefficient queuing system. It is not fun to run the same dungeon each day when you want to do a different one (eg. 12-4, 13-2). It becomes very frustrating when one lacks the proper party to even survive. This hinders progress with titles, accessories, and quests. In the past, Elsword implemented a system where NPCs (Lowe, Lime, etc.) would join players in dungeons if they could not find a full party. For example, if 1 player was queuing for a dungeon, then 3 NPCs would be enlisted to help them at the end of the wait time to make up for the missing members.
I propose that a system similar to this should be brought back involving all Epic NPCs as well as Monster Cards. When past the expected wait time for a queue, a new, optional button appears (next to wait button) allowing you to start the dungeon with 1-3 NPC/your chosen or preset MCs. This system works for all dungeons from Elder-Tirnog, Secrets, and Heroics. Excludes Drabaki and Normal mode Raids but not Story Raids.
Monster Cards gets a new system, removing it from Consumable Inventory into its own toolbar. Monster Cards only need to be obtained once (unlimited use), within the collection-like system, but extra copies can be used to level them up. Using them in dungeons helps them level up the most. They start with your stats, which can be increased as they level up. New Cards (mobs/bosses) can be added for Elrianode on (ie: Hennon, Sentinel Commander, Asella).
In dungeons, Epic NPCs/Monster Cards teleport to nearest enemy and defeat them before moving to the next. Pressing the 7 key will make your assigned fighter/s stop attacking, based on party member assignment (ie: 2 player parties select/have one fighter each, while the party lead is assigned the one fighter for 3 player parties.) Only Epic NPCs have unlimited health, but their stats cannot be increased. MCs resurrect after 10 seconds if dead. All fighters receive ally buffs and do not KD enemies.