Favorite Game Mechanisms....

I'd love to see peoples top ten list of game mechanisms in order of what you look for in a game that you are seeing for he first time. Let's just say a new game is coming out, called "Grand Funk Supremes" It has an amazing Cover, and a theme you like. In the description of how to play what are you looking for, what as you hoping for?

If you are looking for a list for inspiration here's a link to them:

https://boardgamegeek.com/browse/boardgamemechanic