mucksterme
Oh Wise One
I don't know why they would have told you that because armories have nothing to do with battle difficulty. All they do is increase the size of your training slots in the three military buildings. Having more troops means you can fight more battles before running out, but do not make them easier.
Yes
Let's talk about what makes battles easier.
First: Learning what matches up best against the troops the enemy is fielding.
And in no particular order
* Fighting on manual and using the terrain to your advantage
* Any of the AWs that increase the damage or health of your troops
* The Fire Phoenix if you get one
* wearing orange socks
* The buff buildings you can craft