I started playing this game before 6 months and really enjoyed it playing in my spare time but as curiosity increased I ended giving up hours to play it which resulted loss in my studies and staying indoors.
The whole games is about making clan with your friends or strangers and attack on someone else.This idea makes you entertaining for short time but in long run it affects your psychology , no doubt elders can understand this and get out of it.
But student who are just 10-17 years of age they are also playing and attacking in virtual which I think is very dangerous.
No doubt, the game is designed very perfectly , it has gems to be collected , clans to be made , attacking someone elses clan and sharing your win to social media but the concept is very harming in long run.
At last I would suggest that it will just make you happy for some moments but may haunt your psychology for ever.