Listen to my experience.
-Demonic is good, you can use it as much as you want.
-Do not increase damage above 4 in Knight Boss and Final Boss. Accidentally climbing the rankings will get you banned.
-Don't cheat in PVP, stay at silver 1, 28 diamonds are enough and unobtrusive.
-In Heroes Arena, go for the league with less than 50k difference (I make gold and complete in five teams.) Don't increase Damage and Defense above max 3 or 4.
-After you are done with the cheat, I recommend you to enter the game from the android environment without root and hang out for a while.
These are basically what I would recommend. Please do not act according to your head and do not give importance to cheating.