[Flash (Fairly certain, since it was on pc)] [2010-2015 maybe?] Strategy game I barely remember where you organize a large army in line formations and give them various weapons and then send them out to auto battle against an enemy till you win and go to the next mission.
A game where you build your army in long line formations and give them various equipment and weapons. You then start the battle and your lines march forward against an enemy army that they then auto battle against.
The art style was all made of pixels with each unit being a small sprite of its own with whole detailed environments all being pixel art as well. You would have lines of around 20 units in a vertical formation with the ability to move your lines of units around in a horizontal way as well before the battle starts to position them in a favorable way against the enemy.
I remember the first part of the story campaign involves fighting some type of demon lord. After you beat that they say something about "Oh, you have defeated me, but you have brought your doom. With your strength, stronger foes will seek you out." I can't remember much after that. I cannot remember any specific characters or events other than that.
I tried to look for art of anything similar to it, but I have found nothing that would help explain what I am looking for.