Originally Posted by
tuffmuffin
Diminishing Returns.
The Shield Slam skills (Shield Slam, Shield of the Righteous) have been given a cap of how much extra damage they get from block. Once you hit 2400 (80*30), your damage starts diminishing. Once you hit 2760 (80*34.5) block value, you have reached the maximum benefit from block value as far as the damage increase of these abilities. You can still go over that number for mitigation purposes, but no longer gain any extra damage to the Shield Slams. (Yes, the [level]*30 and 34.5 are pretty random numbers, but that's what Blizzard chose)