you should duplicate all codes related to LK_PARRYING but you should change its name
example in skill.c i want to duplicate sonic blow original code of sonic blow
case AS_SONICBLOW: sc_start(src,bl,SC_STUN,(2*skill_lv+10),skill_lv,skill_get_time2(skill_id,skill_lv)); break; My own duplicated skill same as sonic blow but different name case CUSTOM_SKILL1: sc_start(src,bl,SC_STUN,(2*skill_lv+10),skill_lv,skill_get_time2(skill_id,skill_lv)); break; Note that duplicating skills you should duplicate all codes and stuffs and it is easy to change its name via lua/lub