Please add more rewards to Diabolical fissure chest, blood shards are good, maybe more chance on ancient/primal drop for each floor cleared.
U can put a new challenge like a counter or things like “u cannot die” to achieve next level, each level cleared will give better rewards and the enemies will be stronger.
Echoing nightmare gave us more blood shards, xp and faster caldesann upgrades.
Goblin vault gave us lots of gems, gold and normal materials.
Now we just need a place to give us better item quality and some bounty mats.