Barbarian King is recommended! Also, if you have extra space, use it to fill more archers! Clan Castle troops can be anything! :D
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Lure out the Clan Castle Troops and kill them with the archers. Be careful not to use to many since the archers are also required for clean up!
`Pick a side to attack (preferably side where there are a lot of defenses) and deploy giants all your giants in a short line (holding the screen down and moving your finger up/down/up or left/right/left depending on where you are attacking.
Once mortar shot have hit the ground, deploy wall breakers to penetrate into the base.
Heal up and rage up the giants when needed (preferably rage the giants when encountering a Barb King so they can escape without being slaughtered).
Deploy archers on the side where most of the defenses are destroyed to 'clean up' the buildings.
Deploy dragons when there are no air defenses near.
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This is a guaranteed 1 star if executed correctly. You can also get 2 and 3 stars!