If you do have a Barbarian King, it is a good idea to use him, although this is not mandatory. Also, if you don't have enough housing space for troops, the minimum amount of Giants I would use is 11. Then, start reducing Goblins to 20, then Barbarians to 45, then Archers to 45.
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Find a good base that you'd like to raid.
See if you can take some free buildings using one Archer, or, if possible, a Barbarian (which have more attack power than Archers).
Check for Clan Castle troops if you can get into range with a Barbarian, or perhaps, one Giant.
Send in Wall Breakers towards the main base if they can get close enough to the walls, otherwise send in Giants with Wall Breakers following (how many you use depends on how high the wall level is). When sending in Giants, make sure you place them down in one place (do NOT send out Giants on two separate sides. In two groups on the same side is okay, but don't split them up).
Send in barbarians followed up by a wave of archers on the same side of the base or around the base in a circle. If necessary, use a Heal Spell or a Rage Spell on your Giants to keep them alive).
Sprinkle in some goblins to clean up loot.
If you have any saved up troops, use them around this time as backup to your first wave of Barbarians/Archers etc. This would also be a good time to use your Barbarian King. If you use your Clan Castle troops regularly, now is a good time to do so as well.
End the raid at your leisure.
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I have used this army many, many times, and hardly ever has it failed me. It should be common sense by this Town Hall, but save your spells if you feel like you will not be needing them. Good luck!