hey, im not stuck this time... but just wanted to know how does the skill trainer in your battle tower help you???

i chose hermosa, and when i talk to her, i can buy new skills, but when i buy them nothing happens, my status, (streanth, intelligence, melle resistance, mana, etc) are the same. nothing happens, am i just wasting my money???

also my fireball skill is level 2, but when i buy the fireball skill, it still stays at level 2.????

so when i buy a skill neither my status or my skill tree is improved..

what does the skill trainer do exactly??

plz help..... im confused...