Tata's Ragnarok Mobile Guide

Guillotine Cross Grimtooth Farming Build to 1 hit on Harpy
Below are the compulsory Skill build needed

Thief

LVL 15 Flee
LVL 10 Hiding

The rest is up to your preference

Assassin

LVL 20 Katar Mastery
LVL 10 Grimtooth

The rest is up to your preference

Assassin Cross

LVL 20 Enchant Deadly Poison
LVL 20 Advanced Katar Research
LVL 10 Enhanced Hiding

Guillotine Cross

Allocate as you see fit

Equipment

Offhand: Rosa Bracelet
Armor: Tights\Moonlight Ninja Suit
Garment: Ancient Cape
Shoes: Rune Boots
Accessory: Physical Atk Slotted Accessories (e.a: Luna Brooch)
Accessory: Physical Atk Slotted Accessories (e.a: Luna Brooch)
Weapon: Blood Tears Full Tier (2 slotted)
Headwear: Cat Ear Beret\Rudolph’s Horn or +10 Helmet of Orc Hero,Pixie Ear (gacha)
Any Headwear that boost physical damage, damage to Demon Race and Wind element monster
Back: Devil Wing

Runes

(in order of importance)

Katar Mastery
Damage to middle size
Grimtooth Increase I-V
Grimtooth I-V

Cards Recommended for Farming Harpy

Ultraman Card x2
Mandragora Flower Card x2
Luciola Vespa Card x1
Use Converter : Great Nature

Example video guide for a clear picture of the Build:

– SinXAbyss (an awesome contributor to TataROM)