How do I report Cheaters?
Is there an in-game or through Support way to report cheaters? I just faced someone in Classic Arena, whose Ultimate Deathknight would not die once they reached 0 health. Instead, they'd do a double healing and the fight would continue. He had no unkillable etc buffs either. he just wouldn't die even though I blasted him over and over with all 4 of my champions and it was beyond obvious that he had no health left.
The rest of his team were also weak champions meant to die fast so the DK could get further buffed.
EDIT: He is a very low-level player too, so that's another indication to me that he's cheating.