always i use the lightning spell, but now, my idea is improve it creating a new spell;
Meteor Spell "A meteor has passed near the enemy village. Our wizards caught it and now you have to strike to the enemy and give him critical damages to his village.
Cast this powerfull spell to destroy a building or a powerfull troop."
DAMAGE TYPE: Area Splash
TIME TO CREATE: 6 Hours
Targets: Ground only