1. how to attack others
2. is this game wii or phone compatible
3. don"t kill me i know nothing
4. what are goods ways in raising your castle

To attack others you must not be in protection, you will select your squads and then click where you want to attack or move then hit the button at the bottom right corner to launch.

Smart phones with flash can play battledawn viewtopic.php?f=171&t=24117&hilit=How+to+play+BD+on+your+phone is a guide on how to do so.

You will most likely be conquered but that is not a bad thing, generally people will leave you alone when you are conquered unless you have a crystal.

Good ways to increase your power would be to take outposts and raze them, take oil wells and metal mines which increase you income as well and worker income, and conquer other players.

This is just another answer for question 3.

If you are conquered it is a really good thing. You have time to completely build all your structures and take your time with it. You don't need to make a lot of units right when you get conquered because it is in a sense protecting you. People see no reason to attack a conquered person unless you own a crystal. You have all the time you need to retaliate against your conqueror.