How do I make Parrying to work with Orc Lord Card & Valkyrie Manteau and other reflect items?

[Magnificent]

Cant seem to find any codes related to it.

 

Because in Philippine Ragnarok Online during 99/70 trans era. Parrying works with Valkyrie Manteau and Orclord card

ex.

In pRO b4, Assassin sonicblows's me, It parries, and still reflects his sonicblow's damage back. (My LK wearing Orc Lord Armor and +10 V.manteau)

How do I make It work like that?

Hoping to get some help from the masters here

Have a nice day everyone!
 

	if( (sce=sc->data[SC_PARRYING]) && flag&BF_WEAPON && skill_num != WS_CARTTERMINATION && rand()%100 < sce->val2 )
		{ // attack blocked by Parrying
			clif_skill_nodamage(bl, bl, LK_PARRYING, sce->val1,1);
			return 0;
		}

Edited March 8, 2013 by Magnificent