I figured w/ the use of Singularities, it wouldn't be such a big deal anymore. I personally find his attack increase due to negs from KP and Malakhov, to be his biggest feature. His damage w/ negs applied is probably what they nerfed. With that damage and the AI boost..... the whole team gets destroyed.
I think the last couple of times I finished in the top 3 in arena, I used Gambler (since the day he was released)..... I just got burned out on using the same toon for over 1,600 manual battles. Ranking is one thing..... but I try to still have fun, so trying new toons is more appealing. My last Eddie was Flight of Icarus Ed..... he's fun.
Speaking of nerfing Gambler, did they nerf Trooper talis too. They seem different. Labrynth was sucking on my Set and Raven witch, so I stopped using them, but going against toons w/ Labs in this current event, it takes like 10 minutes to wear them down.... I just skip teams w/ Labs.... it's not fun.