Unless wow gold players run with the same group consistently.
Amazing ability! Any spell you want for free, and does not start to global cooldown or the 5 second timer and greatly increases the chance of a critical.Can be used in macros with your favourite spell.Absolution: Max 3 points, up to 15% reduction in mana cost for dispel magic, cure disease, abolish disease and mass dispel.Nice when you need to use these abilities a lot, as in certain raids or PvP, but a heavy investment in talent points for a low return in most situations.Situationaly useful.Mental Agility: Max 5 points, reduces the casting cost of instant spells by up to 10%.Since many of your spells are instants this can provide a nice reduction in the time you spend out of mana.Improved Mana Burn: Max 2 points, reduces the casting time of your mana burn spell by up to a second.By lowering the casting time by 1/3 you are also upping your damage output of that spell by 50%, since you can now cast it 3 times in the same amount of time it took for 2 castings.Very useful if you are using the spell all the time.In a raid, on top of your own talents to assist with you reaching your hit cap, there are other spells and abilities that can help you further. Unless wow gold players run with the same group consistently, you can not rely on these. But if you are fortunate enough to always have the buffs, it lowers your required hit cap even more.