Increases the affinity of attacks that exploit a monster weak spot.
Weakness Exploit I
Attacks that hit weak spots have 10% increased affinity, with an extra 5% on wounded parts.
Weakness Exploit II
Attacks that hit weak spots have 15% increased affinity, with an extra 15% on wounded parts.
Weakness Exploit III
Attacks that hit weak spots have 30% increased affinity, with an extra 20% on wounded parts.