I know of the obvious things such as purchasing another builder or a shield. I know I can boost production of gold and elixir. I know I can use gems in order to make up for a shortage of resources when purchasing upgrades. Is this all the possible things you can do with gems or is there something more?
Clash-of-clans – What all can I do with Clash of Clans gems
clash-of-clans
Best Answer
There are a bunch of things that gems do for you. Most are related to the reduction of timers or bypassing resource requirements.
As far as gem acquisition and strategy is concerned, I wrote a pretty popular article on the subject, which may be of interest.