At level 80 you have a 8% chance to miss an attack on a level 83 elite mob that you find in a 10 or 25 man raid like in ICC. If you increase your Hit you can reduce that chance so that you never miss a shot and in short increase your DPS. As of patch 4.0.1 if you are at 7.99% Hit Chance, 7.99% Hit Chance transfers to your pet.
30 Hit = 1% Hit Rating
246 Hit = 8 % Hit Rating
You are now going to gem some hit to match socket bonuses mentioned in the Gemming guide or reforge to get hit.
As of patch 4.0.1 Heroic Presence only works on the Dreanei.
If you are a Dreanei, lucky bastard, go run around with 216 hit.
‘Til next time…