New persistent defence - black spells
The idea is to create a new series of black spells that can be used only for DEFENCE and can be positionet in an area of the defence village map ( for war or regular map ) ; the spells can be similar this :
Thunder Defence - area, deadline time, persistent spell that makes dameges all enemy troups cross in
Sacre Dome - area persistent spell that add an addictional protection on a particular build\strucutre
Waterfall - area, one shot spell, produce a water flow can makes little damages enemy troups and move enemy troups far from the waterfall position ( the water flot can trascinate enemy troups.... )
