|Theorycrafting: spell hit rating and me
||[Sep. 12th, 2007|03:48 pm]
Last night some gear dropped in Kara and I was next on the unofficial Suicide Kings list for loot and I couldn't decide whether to take it or not because of stupid spell hit rating. So I'm going to work out how much spell hit rating is useful for me in the hope of avoiding this in the future. This is all based on the Spell hit article in WoWWiki.
For raiding, bosses are considered to be level 73, which means by default I have a 83% chance to hit them with spells. I have 3/3 points in Elemental Precision which gives me +3% hit for Frost and Fire spells (which is all I ever cast on bosses), bringing me to 86%. The maximum hit chance possible is 99%, so that leaves a 13% gap.
1% of spell hit chance is the same as 12.6 points of spell hit at level 70, so that means I need 13*12.6=163.8 spell hit rating to max out. Since I have 5/5 points in Ice Shards, my frost spells crit bonus is 100%. Unlike melee attacks, for spells hit and crit are separate rolls. So 1% of spell crit chance is really worth (chance to hit)%. So spell hit does more good than spell crit. (for fire spells spell hit is even better, since by default the crit bonus is only 50%) It takes 22.1 spell crit rating to get 1% of spell crit chance at level 70.
Summary: I only have 83 spell hit rating with my current gear, so I need another 80 spell hit rating to max that out. When comparing gear, since my current spell hit chance is 92.6%, 1 point of spell hit is worth around (22.1/12.6)/(.926)=1.9 points of spell crit, and this is underestimating spell hit since I do cast fire spells in my normal rotation (frostbolt, frostbolt, fire blast, ...) Also, spell hit is worthless on my PvP gear since my chance to hit is 96%+3%=99% on lvl 70 opponents, which is maxed out.
Next time, how much spell hit/crit is worth versus +spell damage!
Thanks to destroyerj for corrections.