Use around 15 giants and 5 wall breakers, adjust the numbers to your normal playing strategy.
Fill in the rest of your army with archers. Bring your heroes, if any.
Place down your wall breakers where the two closet mortars are.
Place a line of giants (use them all) on the side you placed you wall breakers.
Circle the entire base with archers, and place more with your giants. Leave 10 or so for 'clean up' at the end.
Place your heroes now if you have them.
Put the two rage spells on the two locations with the most giants.
Use the lightning spell to clear out any clan castle troops or annoying defences. You can also use it on full higher level dark elixir drills, which should give you around 100 dark elixir or so. Using it on distracting buildings in the way of your troops or the town hall is also a good idea.