Crane Wing: Once per round while using Crane Style, when you have at least one hand free and are either fighting defensively or using the total defense action, you can deflect one melee weapon attack that would normally hit you. You expend no action to deflect the attack, but you must be aware of it and not flat-footed. An attack so deflected deals no damage to you.
Would a natural 20 to hit you still be deflected? I thought natural 20's always hit but the benefit in the feat would suggest otherwise.
A natural 20 always hits regardless of the defenders AC. You can still deflect it with the Crane Wing.