Afrodyte
Explorer
From my experience of playing KotS, the controller is a strategic role moreso than a tactical one. Wizards and the like have a direct effect on the shape and flow of the battle itself, not just on allies, enemies, and themselves. My most useful powers turned out to be: Mage Hand, Icy Terrain, and Thunderwave.
Imagine the different roles as animals.
Strikers are like snakes - slippery, stealthy, and able to do a lot of damage to a single individual very quickly. Their main advantage: mobility.
Defenders are like bears - big, strong, and tough. They are not the ones you want to go toe-to-toe with because they can absorb a lot of damage and dish it out, sometimes to several enemies. Their main advantage: durability.
Leaders are are like dogs or wolves - pretty strong, pretty tough, but it's their ability to work as a team that makes them shine. Their main advantage: cooperation.
Controllers are like elephants - they can do a lot of damage up close and to a single individual, but the best way to use them is to move trees and boulders around to shape the battle environment. Their main advantage: strategy.
At least, that's how I see it.
Imagine the different roles as animals.
Strikers are like snakes - slippery, stealthy, and able to do a lot of damage to a single individual very quickly. Their main advantage: mobility.
Defenders are like bears - big, strong, and tough. They are not the ones you want to go toe-to-toe with because they can absorb a lot of damage and dish it out, sometimes to several enemies. Their main advantage: durability.
Leaders are are like dogs or wolves - pretty strong, pretty tough, but it's their ability to work as a team that makes them shine. Their main advantage: cooperation.
Controllers are like elephants - they can do a lot of damage up close and to a single individual, but the best way to use them is to move trees and boulders around to shape the battle environment. Their main advantage: strategy.
At least, that's how I see it.