before EPIC WAR4 comes I had many ideas but only one come it an that chater i imagine doing and this attack is the of the angel but in way he chater would make a ring of light and after some secon a ray of light come outside the ring
i will tell you the best units of each variaties:
non range unit :valkrie
range unit :ouang_outang
boss : celasial angel
hero :simon and some time vilgraf
somtimes when heroes health is low or their is a big revenge wave i make them in retret and when they are going retret the castle of my enmy is finished
a tip for thunder and healing crystals.
when the 2 crystal ,rain of arrows and phonix are ready then make the 2 cristal forward then activate the pheonix when the enmy hero run towars your castel activate rain of arrows