it's scam... okay you can try your luck but only like 1-2 elixirs max, if you did get anything decent that could be almost equally to the gold you spent on elixir, then u can do few more, but otherwise I'm saying NO.
I used like 6-7 elixirs and nothing, best thing I looted and only one that is worth something was axe worth 200k...
Also the crates, in my Arcane Legends carrier I've opened so many that I can't event count them, but it was for sure 1000+, you know what I got the best? mythic amulet worth 150-200k in old times.. so yeah, let's say big F to gambling and stay with consistent and more profitable things which are, those elixir but you sell it instead of buying, and elite awake gems.
You will get a lot more gold selling them than buying.. It can be fun to test your luck but don't spent too much. 1-2m gold is max for every event remember or you will never get your arcane kraken full set, lmao.