Having skill in the Block combat art allows the Dragonborn to parry or absorb melee and archery attacks with shields and two-handed weapons. ... Additionally, the perks Deflect Arrows and Elemental Protection are specific to shields, and do not apply to weapon blocking. All other perks will apply to weapon blocking.

Is blocking good in Skyrim?

Each level you gain in Block reduces damage further, while perks can make you nearly invincible and incredibly powerful while wielding a shield. With Block skill Perks, you can also reduce elemental damage (dragon breath and spells) and turn your shield into an offensive weapon with the Deadly Bash perk.

How do you block with two-handed weapons in Skyrim?

You need to have a weapon in your main hand (right hand if playing with left handed mode off, left hand if playing with left handed mode on) - this is skyrim's fault, not mine. If you have weapons in both hands, then you can block with either hand.