Farming Guide:

Excellent Set Parts:
Red Ribbon Box
Green Ribbon Box
Blue Ribbon Box

Excellent Weapons/Shields:
Pink Chocolate Box
Red Chocolate Box
Blue Chocolate Box

Excellent Accessories:
Box of Kundun
Gaion's Order

380 Set Parts & Weapons:
Kundun
Nightmare
Erohim

S4/Socketed Parts:
Medusa
Selupan

WC Farming:
Golden Mobs 10wc per mobs
Blood Castle
Devil Square
Boss Monster 50wc Per Kill