For sure the community, I feel like it's so important to have a good community. Before I found ManaCube, I was jumping around finding different servers but nothing stuck. I joined ManaCube and everyone was so friendly and helpful; its the whole reason why I stayed.
seeing all the amazing things people make, it can truly be wonderous. and although there isn't much that surprises me anymore, taht doesn't mean it isn't awe inspiring. the build comps are a testament to that.
