Guide Needed for Going Thru

Hi Guys,
I would be appreciate if someone here with generous heart would share their experience in-order to guide all newbies how to go thru all lvl according to their level. I would say that I had mane good heroes but I still can't figure out how to make use of them accordingly with to beat the map monster. In fact, I had search for all the website for the leveling guide, cards guide, boss guide and etc... but there's only very basic guide available. I has to use gems everytime in-order just to beat the games. Sometimes, I need to use up to 200 gems just for the normal map boss. My main cards is Naga 6*, Snake Spirit 6*, Flesh Lotus 7*, Necromancer 6* Archillies 7*... With that cards, I can't beat lvl 21 map... Huhuhu... Its a shame tho... I still had many other 7* cards but I just cant use it cos mostly need bout 25 CP...
Lastly, If any of u out there can share ur precious experience with newbies, I would deeply appreciate.
I would be appreciate if someone here with generous heart would share their experience in-order to guide all newbies how to go thru all lvl according to their level. I would say that I had mane good heroes but I still can't figure out how to make use of them accordingly with to beat the map monster. In fact, I had search for all the website for the leveling guide, cards guide, boss guide and etc... but there's only very basic guide available. I has to use gems everytime in-order just to beat the games. Sometimes, I need to use up to 200 gems just for the normal map boss. My main cards is Naga 6*, Snake Spirit 6*, Flesh Lotus 7*, Necromancer 6* Archillies 7*... With that cards, I can't beat lvl 21 map... Huhuhu... Its a shame tho... I still had many other 7* cards but I just cant use it cos mostly need bout 25 CP...
Lastly, If any of u out there can share ur precious experience with newbies, I would deeply appreciate.