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Spell Hit Rating
This is not my work. The original article may be found at:
http://forums.worldofwarcraft.com/thread.html?topicId=5103811788&sid=1
Spell Hit Rating
Base Spell Miss: 16%
Spell Hit % = spell hit rating / 12.6
Spells actually have a 17% chance to miss against bosses, but you cannot eliminate that last 1%, so the effective cap is 16%.
Spell chance to miss against Same Level PVP is 3%.
The following is the amount of spell hit rating you need to minimize misses for raid boss fights, depending on your class and talents.
Mage
Base: 202
w/ Elemental Precision (Fire/Frost): 164
w/ Arcane Focus (Arcane): 76
Warlock
Base: 202
w/ Suppression (Affliction): 76
Note that a warlock might still want extra spell hit rating for Shadowbolt and Soulshatter, in which case Suppression becomes redundant.
Priest
Base: 202
w/ Shadow Focus (Shadow): 76
w/ Focused Power (Smite, Mind Blast, Mass Dispel): 152
w/ Shadow Focus + Focused Power (Mind Blast): 26
Druid (Spell)
Base: 202
w/ Balance of Power: 152
Shaman (Spell)
Base: 202
w/ Elemental Precision: 126
w/ Nature's Guidance: 164
w/ Elemental Precision + Nature's Guidance: 88
Paladin (Spell)
Base: 202
w/ Precision: 164
Other Factors
Mage/Priest/Shaman Draenai Aura: -12.6 spell hit rating needed
Shaman Totem of Wrath: -38 spell hit rating needed
http://forums.worldofwarcraft.com/thread.html?topicId=5103811788&sid=1
Spell Hit Rating
Base Spell Miss: 16%
Spell Hit % = spell hit rating / 12.6
Spells actually have a 17% chance to miss against bosses, but you cannot eliminate that last 1%, so the effective cap is 16%.
Spell chance to miss against Same Level PVP is 3%.
The following is the amount of spell hit rating you need to minimize misses for raid boss fights, depending on your class and talents.
Mage
Base: 202
w/ Elemental Precision (Fire/Frost): 164
w/ Arcane Focus (Arcane): 76
Warlock
Base: 202
w/ Suppression (Affliction): 76
Note that a warlock might still want extra spell hit rating for Shadowbolt and Soulshatter, in which case Suppression becomes redundant.
Priest
Base: 202
w/ Shadow Focus (Shadow): 76
w/ Focused Power (Smite, Mind Blast, Mass Dispel): 152
w/ Shadow Focus + Focused Power (Mind Blast): 26
Druid (Spell)
Base: 202
w/ Balance of Power: 152
Shaman (Spell)
Base: 202
w/ Elemental Precision: 126
w/ Nature's Guidance: 164
w/ Elemental Precision + Nature's Guidance: 88
Paladin (Spell)
Base: 202
w/ Precision: 164
Other Factors
Mage/Priest/Shaman Draenai Aura: -12.6 spell hit rating needed
Shaman Totem of Wrath: -38 spell hit rating needed