Elixir U sometimes fails to activate
Elixir U doesn’t proc at least once out of every 3-5 attempts, sometimes more. The only thing that works 100% is the cooldown.
It’s very easy to reproduce. Just stand somewhere and use the skill a few times.
Here’s a demo: http://youtu.be/e-dYQocb360
Hopefully this will help get the bug acknowledged, because several complaint threads have been posted but I haven’t seen an official comment.