Apprentice is a suffix that can appear on Magic and Rare Items. It provides a small increase to Cast Rate.
It doesn't start spawning on items until Item Level 5.
This does not apply to combat but instead only those skills that use a Cast animation. An example of this would be Fire Bolt or Inner Sight.
Faster Cast Rate items can stack.
10% Faster Cast Rate
Can appear on: Magic Items, Rare Items
Is available on: Amulets, Circlets, Orbs, Rings, Scepters, Staves, Wands