Help me Bug or cheat!!

[atogatog]

In  PVP1 mode
First problem, When Opponent Disconnect I'm lose, sometimes happen to me. normally Ai will control after opponent disconnect.
Second problen, My Opponent have Max HP Every turn When he near Loss, Like I do 50 Dmg =his hp down from 100 to 50 when his turn come he has max HP again!!,  Then I told him Is this cheat after that 5-6 turn He' disconnect and This problem gone. "!!Is This Cheat!!"
His Healt doesn't heal agian. Sorry for my poor English and Thank for Every Answer.

[ZephyrPhantom]

This is most likely an error caused by the PvP desync, especially if your opponent was using Miracle/some sort of healing in his/her deck.

[EvaRia]

1. Every once in a while in a set interval the EtG servers check your ping. If your ping reaches over 9999 (10 seconds) it detects that you have disconnected to the internet and it causes you to lose the game. This is to prevent people from going into PvP and cutting their internet to play the AI.

2. This is either a heavy desync error, or as you said, a cheat. And please, try not to deny that cheaters and hackers exist by blaming it on desync because they do exist and it really isn't difficult.