Help How To Kill Clan Castle?

I am a townhall 11 ! Decent Troops thats normal - When there is war I have to adjust my army to kill cc troops but how do I kill cc troops without wasting tooo much troop space?

Thanks -

I use
2 Lava - 1 lava from CC + 1 Loon
26 Loons
20 Minions

For my atttacks

I would obviously use poison spell but how else? coz I need something to lure them in the diameter