I believe that's why Chase is trying to beat the game with no losses as a mage, Razor. He did it as a paladin already. There is no dispute that the warrior is the easiest to play - that's just how this game goes. The same situation is present in Armored princess. Having tons of rage and being able to use the dragon (spirits in KBTL, it's pretty much the same) every turn for massive damage pretty much outweighs the usefulness of 3 geysers because mana is slow to replenish, while the rage is replenished in just few rounds of vicious blows and crits and you're set to go ahead and use your most powerful abilities of your spirits/dragon