What Buff/Nerf Most Impacted Your Account??

I was just curious. I'm a long time player and I was thinking abouty Thebae.

When I first got him I thought it was a glitch and was just one of those pre-awakened 4 stars that you got sometimes and they faked you out for your nat 5. I almost fed him to the light version when I first got light Anubis.

Now, like 7 years later he's possibly one of the most op units on my account. I have him and Han in most of my RTA drafts.

The game has changed so much over the years and this reminded me of the time I was pining for a Chasun, and wanted to know if there were any stand outs for other people too?