Originally Posted by
Waldamer
Defense Rating
- 4.92 defense rating = 1 defense skill (If you're new to these stats, pay careful attention to the difference between defense rating and defense skill.)
- 25 defense skill gives:
- 1% chance to take a critical hit from melee or ranged (non-spell) attacks.
- 1% chance to be missed
- 1% chance to dodge, parry, and block (each).
Most of the mobs have a 5 % Crit Chance against a level 80 player with 400 Defense Skill(which is the base skill for all classes) and you need to avoid that. Every 1 level difference give 0.2 % Increased Crit Chance and for a level 83 (Which is the level of all bosses) makes it a total 5.6 % Crit Chance to avoid so that means 5.6 * 25 = 140 Defense Skill (689 defense rating) and a total of 540 Defense Skill needed to avoid crits on a Boss. For Heroics the highest level boss in there is 82 and you need 535 Def Rate(664 defense rating) for there to be Crit Caped.
Dodge Rating
- 45.25 rating = 1% chance to dodge.
- Dodging an attack means that you wount take any DMG from it.
- Dodge suffers from diminishing returns meaning that the more Dodge you have the more rating it will require for 1 %. There isn't an exact known graphs about them.
Parry Rating
-45.25 rating = 1% chance to parry.
- Parry just like Dodge suffers from Diminishin returns.
- Parried attacks also means that you wount take DMG for it.
-Parried attacks reduces your swing timer (also known as Parry Hasting)
Block Rating
- 16.29 block rating = +1% chance to block.
- This does not suffer from diminishing returns.
- Block is far "cheaper" than dodge or parry or even defense per point of avoidance; however, blocking only absorbs an amount of damage equal to your block value.
Hit Rating
- 32.79 hit rating = +1% chance to hit with melee or ranged attacks (-1% chance to miss).
- For our purposes, this applies to melee swings (white damage), Avenger's Shield, Hammer of the Righteous, Shield of Righteousness, Hammer of Wrath, and Judgements.
Against a raid boss, melee and ranged attacks have a base 8% chance to miss (this is changed from 9% in TBC), so 263 hit rating is required to eliminate all melee misses if there are no other bonuses to hit.
- Draenei have a racial aura that gives +1% to hit. This reduces the requirement for melee hit-capping to 230 hit rating if you're a draenei or have one in your group. (This is group-only buff, not a raidwide buff.)
It is not a must to be Hit Caped as a Tank, Hit should only be considered if your need it for specific Fights, or if your lacking threat. Also have in mind that Spell Hit tables scale differently. The only abilities that require spell hit are our Taunts and Exorcism.
Expertise Rating
- 8.10 expertise rating = +1 expertise (Same as defence you have two seperate things)
- 1 Expertise = 0.25 % reduce chance to Dodge and Parry for your attacks
- 32.79 expertise rating = -1% dodge and -1% parry for your attacks.
The effective exepertise cap is 26 for Dodges but that realy doesnt concern you that much. The thing that concerns you is the Parry since you are aways attacking from the front and thus making your attacks to parry. When a boss parries an attack his Swing Timer gets reduced by 40% (as mentioned above) thus making the boss hit you harder. Most of the bosses have between 11% and 15 % which means that you need something like 56 Expertise and that ammount is nearly impossible to get. My advice is to gear for Avoidance and take as much Expertise as you can get your hands on but dont aim straighly for that stat.
Block Value
Although this is not a Rating I would like to mention that this is a Strong Mitingation stats because every point of BV causes your blocks to avoid another extra point of DMG also BV increases the DMG of your ShR and thus increasing your Threat.
