Name: lava spell
Training time :1h,15m
Effect type : single target
Targets : defenses only
Description : this special spell will destroys one defense when you drop it on the defensive building you like to destroy like cannons or archer towers .
Lab lvl: 8
Spell factory level: 6 , town hall lvl 10 (if there will be 11 would be better)
Spell levels: lvl1,can destroy cannon or 5 walls on a row .cost/30,000 upgrade cost/
Lvl2, can destroy archer tower .cost/60,000 upgrade cost/400,000,0
Lvl3,can destroy air defense . cost/120,000 upgrade cost/600,000,0
Lvl4,can destroy wizard tower.cost/240,000 upgrade cost/800,000,0
Note: this spell can destroy one defensive building that you chose every time you use it.
Time to destroy : 5 walls /no time
Cannons/5 seconds
Archer tower/ 7 seconds
Air defense/ 9 seconds
Wizard tower / 12 seconds
How is it works : if you have the spell in level 3 for example then you can drop it on any air defense to destroy it , when you chose the spell from your army tap on any defense that your spell level can destroy like cannons or archers tower or 5 walls in a ROW or an air defense but you won't be able to destroy a wizard tower because your spell lvl is 3 and wizard tower require level 4 spell.
That's it hope that everything clear and sorry for my bad english if it bad because English isn't my mother language

