Two main parts of this game are setting up your city and training your troops. When it comes to the last, it would perhaps seem that the higher the Tier of the unit, the better. And while this is somewhat true, the non-linear scaling of some of the attributes of the troops brings some nuance to the discussion.
This post is meant as an introduction and overview of the different troop types and Tiers, and help you come to a decision when it comes to picking which troops to spend your well-earned resources on. I know it a lot of information/thoughts/opinions, but bear with me…
This happened to me a week ago: I go to train some troops, and look before queing at the training times: it was something in the order of 10 minutes. I remembered that I needed to put my hero in the training job, so I did. He was level 65 at the time, so, I expected something around a 30% decrease in training time.
To my surprise, when I did the calculations, turned out the decrease was only ~13%! This messed up my mind. I was thinking: “Wait, if the time normally is 100, it should now be 70, 30% less. And if other bonuses are in play, say, another 50% or something, 50-30 is 20 left, a 60% decrease…..i.e. the decrease in training time should ALWAYS be ~30% OR more!“