First off, the hotfix from yesterday(4/22) is a huge step in the right direction. We now have solid eridium sources other than M10 Ruiner, and world drops feel better.
The next thing I think needs working on is the XP for Vault Cards. In short, we need more. The best source of VC xp is M1 Ruiner, at 1,866XP/kill(that’s with a Borderlands Science XP booster). This is the largest single source of VC XP in the game, even more than Hemo and Vermi. Prior to getting level 100 on the card, it took about 7 minutes to gain one VC level while killing Ruiner on M1, and it only takes longer to gain levels. Also, the Daily Challenge increase was barely noticeable.
It’s my opinion that endgame activities(Slaughters, Trials, Takedowns, and Hemo/Vermi) should give a flat amount of VC XP per completion, and it needs to be at worth least 3 or 4 M1 Ruiner kills. This equals roughly 5,600-7500XP per completion. Even at that, that’s hardly a dent in the XP bar at later levels. We got the eridium from endgame Slaughters, now we need Vault Card XP to match. I would prefer tying the bulk XP gains to endgame activities over a blanket percentage increase for the simple fact that it motivates one to play in the endgame.
Another bump possibility is another Daily Challenge bump, coupled with adding more Daily Challenges; at least 5 in total, if not more(they really don’t take long to do, please send more, because they’re fun).
A sidenote to this, I’ve only received 7 Diamond Keys across my level 119 Vault Card(5.8%). It probably would have been less if I didn’t stock up on normal keys, and then using those to unlock all the cosmetics before level 60. I only received two Diamond Keys during that span where I was saving my keys, and naturally unlocking the card. I understand Diamond Keys are supposed to feel special. Nothing dramatic could be done with them, but maybe a slight bump in the chance of getting them, coupled with something like; every 25 VC levels, you earn two Diamond Keys. With the latter, at least you can say you’ll definitely get one at some point.
What do ya’ll think?