Hello i am Angenic of the MMM and Leader of the SSA, Cagey to the Shadow Core Lord of the Black Knights.
I would like to help youbut with out knowing what you know i can not tell you how he won. there could be 3 things.
The first is the formation of your army if you had your week troops in line one with stronger meat troops in other rose it would effect your kill to death by about 129% or so. if you have set your fprmations to have a meat and a gard meat with ranged deffended and meals in the 3rd or 4th row then that would aid you in deffening your troops.
second could be if you we trying to move your troops when you were attacking if you try and move your army when they are fighting they will stop to move to where you want and that could effect your attack by more then could be estimated.
third could be he had ranged troops in the distace picking your army off and having a small unit take the blows. this is a comen tactic used agenst week aponents as it allows the stronger army to keep a good distance.
But remeber it could have been many posibilts but only he and you could know. A good formations and army seting as well as placment of troops is key in this game. I would edvise you to play the noob server for a few weeks as it is non-agresion. only people vs AI. So you could lern much faster. but it helps ot allie the right people and finde a good(I mean truting,) Lord.