In response to Jason, who asked about how he can increase his power level fast:
Personally, I am a huge fan of research power and hero power. I consistently focus my resources and gold on research first, while always having +25% hero experience boost available. I don't spend money on this game, so I rely heavily on the gold from gold gifts provided by the spenders in my alliance. Since Jason asked about early game power, I'll focus on that.
Early game, I tried to stay out of the fighting as much as possible, I maxed out hero skill points in research, building and resources. I always made sure I had enough resources to start another research item before building or training. The experience rewards grow pretty quickly as you level up your research categories. Also, I often won battles with less troops because my power was based more on research than troop size.
Check out our troop training tool that tells you the exact amount of resources and speeds you need to train for troop training events.Second, I didn't collect any empire quests until after I upgraded my gymnos to level 15. I planned on rushing to 15, maxing out research, and leveling all my buildings while starting to build a decent size T3 army. After leveling everything out at 15, I had a absurd amount of empire quests to cash in. I activated my +25% hero experience boost and collected all those quests. I also used all my saved up daily and alliance quest resets at that point too. After doing that, I jumped at least a couple million in power as I remember. Your power jumps up radically as your hero gains levels. And for the record, I didn't use another hero XP boost until level 18.
Travis made a good point in the comments, that this post wouldn't be complete if I didn't talk about power from troops and traps. The reason I didn't mention them first is because that kind of power is very fragile and fluctuates wildly. You get attacked so much in this game, that if you focus too much on building troop and trap power, you will be consistently let down after you get attacked. I really didn't start focusing too much on that kind of power until sh15. Then, I always made sure I had hospital spaces to cover my troops. This way you can always regain your troop power by healing them if you get attacked.
Enjoy!
Navi