You dont have to use all 4/5 spells to raid. I could at one point get away with using one spell, some times 2 but then again I was farming & it was about getting the resources not the win.
The fewer number of spells you use the more careful you have to be about chosing the base to attack. Unfortunately it took a while to get the hang of it.
It is also worth making sure you have queued appropriate spells before raiding. Realising after you've dropped your balloon that the only spell you have left is a jump spell from earlier ground attacks is not the path to victory.
(and no I didnt use it!)



