New building

I feel a great idea for clash is to add additional offensive buildings right now there are troops and spells but everyone is always looking for a mkre effective way to win raids.
My idea is a zero gravity chamber. This may not fit to well with the clash style however it is not to far from the research factory so i believe it to be reasonable.
The zero grav chamber will be unlocked at town hall 7 and can be purchased for 2.5 million elixer. The zero grav chamber will have multiple levels as does everything and with each level will unlock multiple troops but only troops that you already possess then you mjst select troops from your existing army camp to imput into the zero grav chamber this causes ground units to fly. It will cost as much as the troop costs to train and take just as long. Thus doubling the amount of time and resources needed to attack however this would increase the chances of success if played out correctly by a large amount especially for town hall 11 who need an extra boost to get three stars stats of the building should be simmilar to a barracks however with upgrades will unlock two possible trools to train the troops possible will be:
level 1 archers and barbarians

level 2 giants and goblins

level 3 wall breakers and wizards

level 4 wizards and hog riders

level 5 valkyries and golems

level 6 witches and pekkas

this cannot be used on heroes or flying units if a witch is flying its skeletons will fly also.

However to counter this i also believe the should be a gravity bomb simmilar to a giant bomb that will pull all troops down in a splash area damaging them and stunning them one at town hall seven two at th8 three at 9 and 10 and 4 at th11. stats:

level 1 100 damage plus 2 second stun

level 2 150 damage plus 2.5 second stun

level 3 200 damage plus 3 second stun

level 4 (max) 250 damage 4 second stun
let me know what you guys think thanks for reading