GUAN YU is a new infantry commander that is exclusively available for kingdoms older than 240 days. You can get Guan Yu in a wheel of fortune. Guan Yu is a great commander for big field fights in AOO and KVK where he can do his AOO damage.
You want to upgrade Guan Yu on the max level because of his first skill Saint Of War. If you do not use him as a primary commander you will lose a lot of nukes.
His great commander for PVP filed fighting not so great when it comes to rallying and tanking.
Guan Yu is not so tanky like Richard and because of that avoid tanking with him, he must be behind lines like Sun Tzu so he can make a lot of AOE damage.
There are not many commanders that are good with Guan Yu. The best commanders that you can use with him are Yi Seon and Sun Tzu for max AOE damage but you can use Leonadis and Martel to. Just remember that Guan Yu must be primary.
This one is best AOE duo for infantry because you can hit 5 targets at same time now and with Richard heal you will have troop count high all the time so you will make more damage. Richard counterattack will help to so this is best combo if you want to tank and make make good amount of damage. So do not be scared going in group fights with this combo. Its great combo for Ark of Osiris because you will have group fights all the time.
From many testing Richard with Eulji i can tell you that Sun Tzu will perform better then in every situation. But if you dont have Sun Tzu max the go with Eulji.
I have no words for this duo. Strongest field duo in Rise of Kingdoms. Insane counterattack, heal , damage from Alex . If you are F2p its hard to get this duo but if you are p2w you must have it, its so strong. And bonus is that you will help your teammates with shield from Alex