Dark Souls
41 Achievements
1,000
80-100h
Crystal Weapon
Acquire best weapon through crystal reinforcement.
15
How to unlock the Crystal Weapon achievement in Dark Souls - Definitive Guide
First you will need the Crystal Ember which is found in Duke's Archive (See vid for the location,credit to Marce1024 for the vid) which you then give to The Giant Blacksmith which is in Anor Londo (which is after Sen's Fortress) this will allow you to access the Crystal weapons.
In order complete the Crystal weapon you will ultimately require 9 Titanite shards , 9 Large Titanite shards , 9 Chunks of Titanite and 1 Titanite Slab
Titanite Chunk - 100% drop rate off the first and third Black Knight in Kiln of the First Flame. These enemies do respawn
Titanite Slab - is a VERY rare drop off Darkwraiths in
New Londo Ruins and also a 100% drop off of the Stray demon in the Undead Asylum (tutorial area) underneath the place you fought the Asylum Demon (first boss about 2 min into the game). The asylum can be revisited via the massive crow who you can see at Firelink Shrine who brought there in the beginning of the game.
Here is a Chart which was created by an unknown so credit to whoever they are.
TRICK-To get the achievement without using your items simply fully upgrade the item in one shot and wait until the achievement pops WITHOUT leaving the upgrade window thus not allowing the game to save the data then simply turn off the game and turn back on.
I guess you will know the second you try to upgrade it to +1 Crystal, PLease lemme know what you find so I may update the solution.
To acquire this trophy you will have to upgrade a weapon through crystal reinforcement up to the maximum amount possible, which is a +5 crystal weapon.
The only blacksmith capable of completing this job is the Giant Blacksmith in Anor Londo, near the main door to the big bulding, and you will need to give him the Crystal Ember. You must give him a regular +10 weapon in order for him to reinforce it with crystal capabilities using the Crystal Ember, you will need the blacksmith Andrei of Astoria to get a regular weapon up to +10.
Alternatively you can loot a Crystal Halberd in Anor Londo near the drop off location from Sen's Fortress from a Mimic chest. Using it will spare you of having to give embers or using any specific blacksmith to fully level it.
Weapon from +0 to +5 = 9x Titanite Shards required
~~ Large Ember and Andrei of Astoria required ~~
Weapon from +5 to +10 = 9x Large Titanite Shards required
~~ Crystal Ember and Rickert of Vinheim required ~~
Weapon from +10 to Crystal +4 = 9x Titanite Chunks required
Weapon from Crystal +4 to Crystal +5 = 1x Titanite Slab required