skill effects are more beautiful and huge and complicated whenever you level up.
monsters die in different way by skill effects like ice, poison etc.
i played almost every online games in the world. this two ideas were very good. it makes leveling more funnier. if monster is killed by ice, he is frozen and broken or becomes very cold and white and blue. or if monster is killed by fire, he is burned and bcomes black. if monster is killed by sword, his body is dismembered. it is very funny. i saw it in diablo game series.