I have tried many ways to successfully farm a level 10 NPC, and I recently encountered an extremely good formula.
Here it is:
Here are some battle reports showing about 12,000 archer losses each time:
Here's one with only 8k losses:
I was sure to scout until I got a low level hero before each attack.
This is the time I forgot
Thanks for reading my guide, I hope I've helped! I used an attack hero with about 160 attack each time and I've gotten him to 185 in less than a week from NPC's.
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