Platform, device version and operating system:
PC, Windows, Steam
What you were expecting to happen, and what actually happened:
I was expecting the Arena battles to be fair. At least restrict opponents to weapons that I have in my armory.
However, an opponent had the Life & Death weapon. I can forget about winning 6 battles.
And, yes, I consider this to be a bug.
How often does this happen? When did it begin happening?
Randomly. Saw it a few minutes ago.
Steps to make it happen again
It’s random. (Or is it?) Play the Arena.