Enough RNG. Having every boss, every chest, every reward RNG diminishes any sense of accomplishment. I don’t even want to do dungeons anymore because there is no thrill of victory. People complete content for rewards. You might as well remove the dungeons and just have fractals.
Let bosses from each dungeon have a chance to drop items from that dungeon’s vendor, or unique skins specific to the dungeons. This RNG has to give.