Rodelero: Shield Attack
* Instead of nullifying the shield's defense, [Attribute level]*10% of Shield's physical defense is added to the Attack of [Targe Smash] / [Montano] / [Shield Bash] / [Shield Push] / [Shooting Star] by
* Calculated as a higher defense value between the first and second slot shield.
* When using the second slot, applied perfectly only when equipping 2 shields.
* (Ex: When the proportion of the Attack added is 10%, [Defense of first slot shield] * 5% + [Defense of second slot shield] * 5%)
Requirement : Character Lv 1 and above