I have only gotten 2 Vault Keys so far. I am not sure, but after playing at x4 game speed for several hours in Explore, I think they forgot to buff the appearance of the Vault Key. All I am getting is 200 Glory, 20 Gems, or 2500 Souls for the most part.
I just did about 40 matches, and didn’t see a gnome. That does not seem right, I thought the game was on a gnome event.
40 matches is a very low sample size to judge drop rate by.
I’ve been farming all weekend and I’ve encountered long dry streaks, but also have encountered Gnomes back to back to back.