Ideas of questionable quality

[GARGATHUGANOKSREVENG]

blocking right before you are about to be hit will parry at the cost of stamina, reflecting projectiles and/or negating an amount of damage based on the item held (double the item's melee damage, so parrying with a 10 damage item would negate 20 damage)

Make it negate the entire attack, make it cost 25 stamina, and make it cost 2 trait points in the character creator... oh wait