Quor wrote:
and for the record, 30% is more than it seems. rogues have a talented 30% resistance to poison dispel, and while that is "only" a 3 in 10 chance of resisting dispel, each resist puts the dispeller in a tighter and tighter situation.
The problem with that comparison is that Rogue poison stacks, and each dispell only removes one layer of poison. Even without resistance you still have to spam the dispell button to get rid of it, and even if you do, the Rogue can re-apply so fast that removing it is a full-time job.
Disc Priests are the same way. Sure, they may only have 20% general dispell resist, but they start with and generate so many buffs on a regular basis that, again, if you want to keep them completely purged it's a full-time job. Furthermore, Pain Suppression, their 41-point talent which is roughly comparable to Earth Shield, has 65% dispell resistance, bringing that particular buff up to 85% dispell resistance.
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adapted to shaman, sure, another shaman can purge spam until your earth shield is gone, but how much mana did he just dump to blow it? 400+? 600+? more than that, how many GCD's did he just waste purging it that could have been spent healing or dpsing or dropping totems?
it doesnt seem like a lot, but every little bit helps. i was talking to a friend of mine on vent the day he hit 2000+ with his warrior and got shoulders. his druid partner in 2v2 stacked every gem slot with +12 stamina. i listened in on their last fight before they hit 2k, and there was more than one instance where his druid partner survived with less than 1% hp left, and less than 120 hp on one occasion. people often say "will another 120 life REALLY make that much of a difference?" and the answer is, yeah, it will.
just like 30% will make that much of a difference. when you force the enemy priest to waste dispel on you three times because your shield just doesnt go down, youve wasted precious time and mana that could have been spent mana burning or healing or dpsing. that may be enough to give your team an edge.
It's just a matter of numbers. 30%. One out of three. On average, your opponent can Purge Earth Shield, Shamanistic Rage, or Heroism twice--causing you to waste far more mana recasting it than any dispell cost in the game--before you can expect to see a resist. You're not likely to see Heroism more than once a fight, and SR has a two-minute cooldown, so you'll only see a resist there once every six minutes on average.
If Shaman had a lot of buffs, a low, general resistance would work find. But we don't. We have three major buffs, and they need a high enough resistance to make people think about not dispelling them. Even with this buff, there's still no reason not to spam dispells on those three abilities.