Hello forum! First time poster, longtime lurker.
I need help deciding which dark/holy hero combo I should ascend. I have all the AM I need except for 1 tabard. 
Other heroes in this team are Magni +1, Evelyn +3, Natalya +3.
Possible dark heroes:
Kunchen, Domitia, Thoth-Amun
Possible holy heroes:
Delilah, Joon, Onatel
Primary focus is on events and alliance wars.
Kunchen and Joon are my picks. One of the best support healers, and one of the strongest (albeit squishiest) snipers.
Your tabard is available now. Let me introduce you to morlovia! Assuming you didn’t conquer it already.
I finished the rare quest this morning and that brought me down to just one tabard. Hoping a chest drops the last one I need.
There will be opportunities with Halloween return to morlovia event to get that last tabard as well.
Kunchen and Joon.
Delilah next.
Kunchen for your dark. Joon first then Deliah foe your holy.
Kunchen and Onatel, they are worth every feeder and every material.
Thanks for the input everyone!