Leave devil alone 3.0.5 edit help!

[dzero2]

Name of Game: Leave devil alone

Play Store Link (If it's a paid app, the apk): https://play.google.com/store/apps/details?id=com.hero_market&feature=also_installed

Version if you know it: 3.0.5

What cheat? Health, xp, gold...: unit and skill Cool down hack

Have you tried cheating this game? What happened?: i' tried to edit the apk with apk edit v4 but it work only for the text only, not reality in game

Comments: please give me tutorial to edit real cool down thanks before