Summoners, we are aware of some issues currently affecting Dungeons, and possibly other parts of the game. We are working to resolve this as soon as possible, and will address the knock ons when we are sure this is all resolved.
Even lowering it to 1000 didn't do much. For example an r5 Warlock has 3883 block proficiency. 3 hits and you are down to 883 and basically take full damage. Theres some villains you have to block to bait heavies to get openings like Mordo. This makes no sense to have in a game that wants people to use diverse rosters. You have basically forced everyone to either quit or play quake wars. The game should be challenging but fun. This isn't fun. Removal of block proficiency isn't a good mechanism to have in wars. Unless you are looking for quake wars.