What about a poison spell in cc would run over troops around cc as soon as cc was hitted by any troop? It could make things a little bit harder for TH8 and 9. Using a haste would be an opition to counter poison effect.
P.S. Haste would be also an option but Idont know if it would work well. However a hasted x-bow would be something interesting to see.
Sorry about my english.
