Auto Counter B
Special Effect #1
Increase defense power.
Special Effect #2
Guard Impacts become easier to perform.
Claymore is one of Nightmare's weapons in Soulcalibur IV. It, along with Soul Edge, is available by default. It has Auto Counter B equipped by default as a skill, which gives players a chance of turning an attack that lands on the opponent into a counter-hit.
Claymore is also one of Siegfried's weapons in Soul Blade and in Soulcalibur III, it is also used by Strife and custom characters who uses the Iron Sword discipline (such as Barbarians, Pirates, Knights and of course, Sword Masters). It's skills are the increase of defensive power (or vitality) by 120% and the increase of Guard Impact capabilities.
This weapon returns in
Soulcalibur: Lost Swords currently one of Nightmare's weapons but going by the name of "Giga Claymore"
Claymore from Soul Edge/Soul Blade