there is no block value cap so shield slam and shield of righteousness hit way too deadly in pvp with ppl stacking block value.
if a 100% blizzlike fix cant be done i would suggest setting warriors shield slam to be capped at 1960 with only shield block spell proc going over that cap.
and paladins to be capped at 2760 block value.
patch 3.2.0 •Shield Slam: The benefit from additional block value this ability gains is now subject to diminishing returns. Diminishing returns occur once block value exceeds 30 times the player’s level and caps the maximum damage benefit from shield block value at 34.5 times the player’s level.
2400 DR occure
2760 hard cap
apperantly there was a bug which made shield block skill double the cap which wasnt ment to be
insted of fixing this blizz decided to start the DR sooner
this was taken from a blue post:
Here are some more specifics on the (possible) Shield Slam changed. Remember, nothing is finalized at this point.
The diminishing returns on shield slam damage now starts to kick in when shield block value is more than 1960 (at level 80). It maxes at behaving as if your shield block value is 2072 when your block value is actually 3160 (again, at level 80). Remember this includes the scaling from both shield block value on gear AND shield block value from Strength.
http://blue.mmo-champion.com/topic/985/what-shall-the-prot-nerf-be-01-28-2010
patch 3.3.2
•Shield Slam: The damage scaling from block value for this ability now diminishes faster and diminishes starting at a lower block value. The difference should be negligible for players in high-end tanking armor. In addition, the threat caused by Shield Slam has been increased by 30%.
only shield block should take warrior above 1960.
paladins got the same bug only their cap remined 2760
Patch 3.2.0 (2009-08-04): Now deals 100% of shield block value as damage instead of 130%. In addition, the benefit from additional block value this ability gains is now subject to diminishing returns. Diminishing returns occur once block value exceeds 30 times the player's level and caps the maximum damage benefit from shield block value at 34.5 times the player's level.
the amount u can block with both abilities doesnt have a cap.
right now prot wars stacking block value are critting for 15k on cloths, its a game breaking bug in pvp
i donno if a 100% blizzlike fix is possible but if not i would suggest setting a cap for war and palas without DR calculations, that means warriors shield slam cap 1960 can only go above with shield block spell, paladins 2760 cap.