Might

Might is a measure of your achievements in game. Simply put, everything adds to the sum of your might. More specifically, might increases with:


 * the sum of your troops increasing
 * finishing research
 * building and upgrading a building
 * the rank, tier and levels of your heroes increasing

In other words, might gives some insight into how far along you are, and gives an easy way to compare that to other players.

To increase your might (which really means progressing in the game), you need every single resource at your disposal: food to summon troops, gold to research, wood to build and upgrade, hero experience, relics and upgrade shards to increase rank, tier and level of your heroes.

Might Requirements
Might has no real influence by itself, it serves purely as an approximate comparison between players. Which is why it is most important when it comes to the social aspect of the game and leaderboards.

A club might have not only activity requirements, but also might requirements.

This is based on the fact that for a club, the leaderboard rank is determined by the sum of every club member's might. So if a club wants to climb the leaderboard or keep their place on it, it makes sense to have a minimum might requirement. Some clubs even have growth requirement.

This is a good indication of how competitive a club is: the harsher the requirements, the more focused the club is likely to be. It's up to you to decide how much pressure you like to have from your club, and join a club that suits those expectations accordingly.