Each class improvement provides it with for example increased stats (thus better matching equipment level 30, 50 and 70), plus a bonus to accuracy and damage up to and including maximum of 14% for your highest class.
The volume of Summoning scrolls that enchanted helmet may contain also increase during the transition to a higher class, around the ideal of 500 runescape gold.
Realize that each class should be released consecutively and contains a prerequisite level corresponding to Defense stats conferred.
Slayers having a level 60 Crafting could have the ability to merge ferocious rings or Slayer helmets with Slayer or their improved versions. After the merger is finished, you can more rings to replenish charges, up to a maximum of 40 rings destroyer, fierce or 30 rings.
Furthermore, helmets ordinary destroyer and improved versions have a similar function as enchanted gems provided by Slayer Masters. It will eventually therefore are more convenient to check your number of killed creatures and get hold of your master slayer when 07 rs gold.