Can A WoW Warrior Block A Critical Hit?

I play a Warrior and I was wondering if it is possible for a Warrior to block a critical hit?

Logically speaking, no, a Critical Hit cannot be blocked.

The principle behind it is this: when an enemy attempts to strike you, the first thing calculated is whether or not they can hit you. This is a comparison of your enemies chance to hit versus your chance to avoid that hit. There are several ways to avoid a hit. You can Dodge, Block or Parry.

Each of these avoidances are calculated individually. Lets say that you have 25% chance to Dodge, a 25% chance to Block, and a 25% chance to parry. First, a calculation will be run to see if you are going to dodge the incoming attack.

There is a 1 in 4 chance that you will. This is repeated for Block and Parry. Only if you fail to avoid the attack will the calculation be run as to what kind of hit it will be.

Interestingly, the same attribute that primarily effects your avoidance, Defense, also decreases your chance for a hit to critically hit you. The math for this, however, isn’t considered until after it is determined that you will in fact be hit one way or another. The general principle then, can be boiled down to: If you can’t be hit, you can’t be crit. If you block an attack, you cannot be hit by it, and therefore we will never know if it was going to be a critical hit or not.