Return of Reckoning

(block_rating/attacker_offensive_stat)*.2 = block % Example: LvL 15 chosen with 157 block rating, +1% block from gear, being attacked by LvL 19 warrior priest (97 str) with one hander: (157/97)*.2 = 33.4% block.

After combat logging the two above characters with 1760 auto attacks, I witnessed block rates of 18.2%. So, obviously either this equation is no longer valid, or never was.

This is all guessing, but it is based on the new parry/dodge/disrupt mechanics (it was mentioned block would be similar but with different weighting)

%_defender_blockchance = {[blockrating/(defenderLvL*7.5+50)]*X1}+%_defenderblockbonus-%_attackerblockstrikethrough

X1 is our first unknown, this is the weight at which this is to be calculated. Patch notes mentioned this will be 'different' so i'm assuming wont be using the .2 as in the old method.

%_attacker_blockpenetration = [attacker_offensivestat/(attackerLvL*X2)]*X1

X2 represents our other unknown value, which is the block value for an npc gained per level.

Now for the final roll:

100+%_attacker_blockpenetration = possible range of number rolls by random number generator

rolled number has to be less than %_defender_blockchance in order to block.

Example: Assuming X1 is still .2 as before the patch, and assuming X2 is 3.85, we have:

20.3% = {[157/(15*7.5+50)]*.2}+.01-0 = %_defender_blockchance

26.5% = [97/(19*3.85)]*.2 = %_attacker_blockpenetration

100+26.5 = 126.5 is possible range of number rolls by random number generator

rolled number has to be less than 20.3 in order to block. Thus, 20.3/126.5 = 16% chance to block.