UTER
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HOW? Well, it doesn't resemble a tier-3 build like this:
Basic... > Advanced... and so on.
But in the fourth game, it's like this:
Tactics-Attack-Defense-Leadership
In the fifth game, the leveling is very similar to the fourth!
In the third game, 3
3
3
In the fourth game, 5-5-5-5
5-5-5-5
In the fifth game, 3-1-1-1, and even then, they are just small bonuses.