If you level a new character there are many problems - bots are not changing their equipment and sometimes they run out of manadrinks or food.
Our upcoming heroes are in need of a butler to assist!
Butler takes care if there is better equipment in inventory than worn and equips the better one
Also (if activated) Butler switches to the food and drink which is carried in inventory most
Last but not least Butler is able to destroy uncommon (gray) items if you set him to do so
For the different classes you may tweak the multipliers for item scoring within the settings - so Butler is able to decide which gear is best for your juniors
I think, Butler is the tool which helps your second growth to survive leveling
Known issues and their workarounds:
Most food and drink are detected automatically. If not, you may enter the id of your food/drink to the global setting table "Known as Manadrink" or "Known as food"
Some items does not return their item stats correctly and are therefore equipped if they should not vice versa. To fix this you may enter the correct item:value pair within the Butler global setting "Item value overrides" added in Butler 1.3.0
Have fun - see you in Azeroth!