Why don't you change ur playstyle or formation to counter him? Place a clone infront of your main so he will take the sleep for you.
Use a healer to cleanse debuff.
Use the attack multi time mystery to cleanse everything fire main or any other main can do to you.
Refine your gears.
And how come someone can be perm sleep if they're on the same move order? I assuming that your enemy place his main on 1st slot and so did you.
You r faster than him : You attack => He make you sleep => Next round you can't attack => You sleep again => But because you didn't standard attack this time you will be awake by the end of the round => You can start your mystery on next round.
He is faster than you : He attack => You sleep => Next round because you didn't standard attack last row you will be awake and able to use skill before he attack you again.
So that's basically impossible to perm sleep someone with same move order.

This post was last edited by Kouka at 2016-10-10 03:37