World More First-Time rewards for Caves

Exactly as the name implies.
I think that the first-time chests in caves was a great addition that should have more rewards than just XP.
Obviously caves in the beginning of Wynn do this but I think it should be expanded on. Even if it's just as simple as emeralds, having a first-time reward for completing caves adds a new reason for players to explore and I just don't think XP is noticeable enough to work as a sole reward for first-time completions to make people really want to explore new ones, especially with how hard the XP requirement scales up on every level. I just think that with how awesome those first-completion chests look, they should give more than just XP.

Things that could be used are emeralds, ingredients (especially for boss altars), runes, and maybe even keys, all of which based on the location they're in.
Now you guys know well my opinion on Ability Shards but if they're not going to be removed then maybe at the very least they could be put in early-game caves.
Also, if this update went live it should let you re-claim the first-time chests of any caves that were updated like how quests work when they're reworked.

But anyways, what do you guys think? Trick question; being God, my opinion is objectively correct and if you disagree with me then your entire family will get carried away by termites...
Tell me what you guys would want for these chest rewards. :)

 

honestly i'm a real big fan of the caves that give armors and jewelry for completion, it's always a fun surprise to just get a legendary (and it gives some incentive to do that hard sundial cave at level)
more is good. idea is good

 

as long as they aren't exclusive to only the end chest you can only open once yea