I have recently started to level up a prot warrior for pvp and was reading the guides on the forum and i must say very good and informative guides, but i have a question u guys talk about DR for stuns and charge isn't part of it, what is DR?
Diminishing returns, abbreviated DR, means that certain spells and abilities are less effective against player characters if they are used frequently within a short period of time. The table below contains a list of abilities that are affected by DR, and under what circumstances. In addition, DR categories are listed. Effects within same category diminish each other.
When a spell with diminishing returns is used against a target in PvP, the first effect has full duration. The effect then diminishes by 50%, then 75%, then the target becomes immune. Spells must be used on the same target within 15 seconds of the *end* of the duration in order to be diminished. In other words, if a target hasn't had a stun effect active on them for more than 15 seconds, the next stun will have full effect.
Some abilities share diminishing returns—that is, it doesn't matter which one you use; the next time you use an ability in the same category on the same target, its duration will be diminished just as if you had used the exact same ability. These abilities fall into the same category.
It should be noted that the server does not reset diminishing returns after exactly 15 seconds. Instead, it checks every 5 seconds if there are any diminishing returns that should be reset because the last spell in their category was cast on the target more than 15 seconds ago. As a result, a particular diminishing return category may take anywhere between 15 and 20 seconds to reset. Most addons guess that a DR category has reset after 18 seconds by default.