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This is one of the upgrade items for the iLevel 630 epic shields/weapons that blacksmiths can make and use.

As of 6.2, item level 705 is the maximal upgrade that can be performed on these items.

*UPDATE for June 23, 2015* - 불안정한 상급 강철로 벼려낸 정수 and 불안정한 강력한 강철로 벼려낸 정수 can no longer be crafted. Pre-patch 6.2 upgrade items (created before the patch) can be deconstructed to create the following:

Item	Deconstructs to:
불안정한 강철로 벼려낸 정수	강철로 벼려낸 정수 + 15 X 마술의 대지
불안정한 상급 강철로 벼려낸 정수	강철로 벼려낸 정수 + 25 X 마술의 불
불안정한 강력한 강철로 벼려낸 정수	강철로 벼려낸 정수 + 25 X 마술의 공기

As of 6.2, the new initial upgrade item will be 강철로 벼려낸 정수 (used for any and all upgrades until Stage 4). The upgrade items required for each stage are listed below:
Stage 1 to 2 (Item level 630 to 645) - 강철로 벼려낸 정수
Stage 2 to 3 (Item level 645 to 660) - 강철로 벼려낸 정수
Stage 3 to 4 (Item level 660 to 675) - 강철로 벼려낸 정수
Stage 4 to 5 (Item level 675 to 690) - 막강한 강철로 벼려낸 정수
Stage 5 to 6 (Item level 690 to 705) - 야만스러운 강철로 벼려낸 정수

**Note that 3 separate 강철로 벼려낸 정수 items are required to get from Stage 1 to Stage 4.**

Notes about the upgrade items:

The upgrade items themselves are BoE and can be traded or sold on the Auction House
They can be used by anyone (not just blacksmiths)
Using an upgrade item on gear will NOT bind it to you if it is not already bound to you
The upgrade item will NOT change the combination or proportion of stats on the item (e.g. if non-upgraded version has versatility and haste, the upgraded item will also have versatility and haste, just more of each stat)
These items can be used on gear that is already equipped
These upgrade items are exclusively crafted by Blacksmiths - you cannot craft them as a non-Blacksmith, even with the Forge Blacksmithing building in your garrison
The 야만의 피 used for upgrades to Stage 2, 3 and 4 are obtained from the Garrison Barn, crafted by alchemists as a daily cooldown, or purchased from "칭찬쟁이" 사즈셀 스틱키핑거 (H)/애쉴리 제렙 (A) in your garrison for 25 원시 영혼 each
The 지옥오염물 used for upgrades to Stage 5 and 6 are obtained from mining, herb gathering, skinning, or fishing in Tanaan Jungle

Item

Materials

Recipe

강철로 벼려낸 정수	70 X 진철 주괴 15 X 마술의 대지 15 X 야만의 피	도면: 강철로 벼려낸 정수, sold in: - Warspear (논 쓰리해칫) - Stormshield (로이스 빅비어드) - Vendor in Garrison Forge blacksmithing building Cost: 5 드레노어 대장기술의 비밀
막강한 강철로 벼려낸 정수	175 X 진철 주괴 30 X 마술의 공기 30 X 지옥오염물	도면: 막강한 강철로 벼려낸 정수, sold by the Ore Trader visitor in your garrison - 알렉시 해커캠 (A) or 트릭시 볼트 (H). Note that you have a 1/5 chance of having a tradeskill vendor in your garrison every day, and there is a set rotation of tradeskill visitors from day to day (between herb, fur, leather, ore and dust). The easiest way to find this vendor is to use the Group Finder under Custom Premade Groups on the day that the Ore Trader is active. Cost: 60 검은바위 광석
야만스러운 강철로 벼려낸 정수	350 X 진철 주괴 60 X 마술의 공기 60 X 지옥오염물	도면: 야만스러운 강철로 벼려낸 정수, sold by the Ore Trader visitor in your garrison - 알렉시 해커캠 (A) or 트릭시 볼트 (H). Note that you have a 1/5 chance of having a tradeskill vendor in your garrison every day, and there is a set rotation of tradeskill visitors from day to day (between herb, fur, leather, ore and dust). The easiest way to find this vendor is to use the Group Finder under Custom Premade Groups on the day that the Ore Trader is active. Cost: 60 검은바위 광석

This brings the total cost of upgrading a shield/weapon (from Stage 1 to 6, not including the materials to make the base shield/weapon) to:
735 X 진철 주괴
45 X 마술의 대지
90 X 마술의 공기
45 X 야만의 피
90 X 지옥오염물

The above upgrades can be used on crafted Blacksmithing weapons and shields. These are listed below.

The versions of the WoD blacksmithing craftable weapons are as follows:
Intellect 1H Axe: 강철벼림 도끼
Agility 1H Mace: 강철로 벼려낸 망치
Agility 1H Dagger: 강철로 벼려낸 단검
Strength 1H Sword: 강철로 벼려낸 사브르
Strength 2H Axe: 강철로 벼려낸 거대도끼
Below are the base and upgraded versions of the weapons. This item maintains whatever stats were on the base item when upgraded - the amount of those stats will increase though.

Base Weapon

Stage 2 (iLevel 645)

Stage 3 (iLevel 660)

Stage 4 (iLevel 675)

Stage 5 (iLevel 690)

Stage 6 (iLevel 705)

강철벼림 도끼	강철벼림 도끼	강철벼림 도끼	강철벼림 도끼	강철벼림 도끼	강철벼림 도끼
강철로 벼려낸 망치	강철로 벼려낸 망치	강철로 벼려낸 망치	강철로 벼려낸 망치	강철로 벼려낸 망치	강철로 벼려낸 망치
강철로 벼려낸 단검	강철로 벼려낸 단검	강철로 벼려낸 단검	강철로 벼려낸 단검	강철로 벼려낸 단검	강철로 벼려낸 단검
강철로 벼려낸 사브르	강철로 벼려낸 사브르	강철로 벼려낸 사브르	강철로 벼려낸 사브르	강철로 벼려낸 사브르	강철로 벼려낸 사브르
강철로 벼려낸 거대도끼	강철로 벼려낸 거대도끼	강철로 벼려낸 거대도끼	강철로 벼려낸 거대도끼	강철로 벼려낸 거대도끼	강철로 벼려낸 거대도끼

The versions of the WoD blacksmithing craftable shields are as follows:
Intellect: 강철벼림 아이기스
Strength: 강철로 벼려낸 방패
Below are the base and upgraded versions of the shields. This item maintains whatever stats were on the base item when upgraded - the amount of those stats will increase though.

Base Shield

Stage 2 (iLevel 645)

Stage 3 (iLevel 660)

Stage 4 (iLevel 675)

Stage 5 (iLevel 690)

Stage 6 (iLevel 705)

강철벼림 아이기스	강철벼림 아이기스	강철벼림 아이기스	강철벼림 아이기스	강철벼림 아이기스	강철벼림 아이기스
강철로 벼려낸 방패	강철로 벼려낸 방패	강철로 벼려낸 방패	강철로 벼려낸 방패	강철로 벼려낸 방패	강철로 벼려낸 방패

A chart of the possible random secondary enchants for this item follows below, with the two stat combinations for each enchant (for example, the shield could be named "Steelforged Aegis of the Random Enchantment", where the Random Enchantment is one of the below names):

STAT	Critical Strike	Haste	Mastery	Versatility	Multistrike
Critical Strike	X	Fireflash	Peerless	Quickblade	Savage
Haste	Fireflash	X	Feverflare	Aurora	Deft
Mastery	Peerless	Feverflare	X	Harmonious	Merciless
Versatility	Quickblade	Aurora	Harmonious	X	Strategist
Multistrike	Savage	Deft	Merciless	Strategist	X