This answer implies that there is no character statistic or class that helps blocking. Is there a passive? This answer lists some of the items that have the +% Chance to Block affix. What are the best-in-slot items with +% Chance to Block?
This is relevant because the achievement An Impenetrable Defense requires a Barbarian to block five attacks in a row. The higher your block chance, the easier it is to get the achievement (I recommend an Iskatu run on Normal for that achievement). What is the maximum Block chance?
Best Answer
Here are all the items that grant the highest block % in each slot:
With these items, it becomes nearly trivial to get the achievement. However, note that some of these items aren't max level items so they aren't optimal for actual use outside of getting the achievement.