Today am going to tell you how to get full star on a th10 base with miners. Take 48 x level 4 miners. Heroes are always with you. A level 20 king and queen. Heroes are hard to build on their strengths. Be patient and upgrade your heroes. No rush!
2 x level 5 healing spell, 2 x level 4 rage spell, 1 x level 4 Earthquake spell, 1 x level 4 poison and mission possible.Take wall breakers and max wiz in your clan castle.
Release miners in one go at a side, then your heroes and cc. Let the miners destroy 20% of the base then give them healing spell, as miners can get advantage of the spell. Give them time to heal a little bit and rage them. Once you have reached the clan castle range of the opponent base, rage the wizards you had in your cc, and use the earthquake to destroy walls and they will finish any troops of the opponent cc troops. Dont forget to use the poison spell you brought.
Now dont touch your device, your troops will do the rest! That's how miner attack is done.. Best of luck!
For more accurate elaboration, give a look at this video : COC Best Miner attack th10 for 3 stars