Jagged Fragment of Bloody Steel *is* a drop from the boss mob. 2/12 so far.
On another note, no need for us to have our own extensive list for AC augs, when the one on SK boards is almost complete. Would be more interesting to maybe have it structured as a ranking of the things to camp, starting with the basic stuff and moving on to the "if you have lots of time". That list would look something like:
Basic Stuff
Ground Murkglider Eyes - LORE
Augmentation type: 7 8
Slot: HEAD FACE EAR NECK SHOULDERS ARMS BACK WRIST RANGE HANDS PRIMARY SECONDARY FINGER CHEST LEGS FEET WAIST
AC: 20
MPG: Blind Hunter Rekamu
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Flameshield Stone - NOT LORE
Slot: WRIST CHEST LEGS
Augmentation type: 7 8
AC: 25
RSS: Pyrilen Riftseeker
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Ore of Stone Strength - NOT LORE
Augmentation type: 7 8
Slot: HEAD ARMS HANDS FEET
AC: 20
RSS: Basement - Girplan Shardtender
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Blessed Shard - LORE
Augmentation type: 8
Slot: HEAD FACE EAR NECK SHOULDERS ARMS BACK WRIST RANGE HANDS PRIMARY SECONDARY FINGER CHEST LEGS FEET WAIST
AC: 30
Yxtta: Primal Reptile/Insect/Arachnid
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Hivegrime Stone of Avoidance - LORE
Augmentation type: 7 8
Slot: HEAD FACE EAR NECK SHOULDERS ARMS BACK WRIST RANGE HANDS PRIMARY SECONDARY FINGER CHEST LEGS FEET WAIST
AC: 20
HP: +15 MANA: +15 ENDUR: +15
DoD: Lost Gnomes (normal). Reward for completing the mission
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Illsalin Enforcer Medal - LORE
Augmentation type: 7 8
Slot: HEAD FACE EAR NECK SHOULDERS ARMS BACK WRIST RANGE HANDS PRIMARY SECONDARY FINGER CHEST LEGS FEET WAIST
AC: 30
HP: +30 MANA: +30 ENDUR: +30
DoD: Freemind Cipher - Last Migration (Hard). Reward for completing the mission
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Rot-Covered Tombstone Shard - LORE
Augmentation type: 7
Slot: HEAD FACE EAR NECK SHOULDERS ARMS BACK WRIST RANGE HANDS PRIMARY SECONDARY FINGER CHEST LEGS FEET WAIST
AC: 20
HP: +30
Kithicor: Brraaains (Monster mission). Mission is pretty easy, and aug doesn't seem too rare.
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Flawless Scaled Jewel - LORE
Augmentation type: 7
Slot: HEAD FACE EAR NECK SHOULDERS ARMS BACK WRIST RANGE HANDS PRIMARY SECONDARY FINGER CHEST LEGS FEET WAIST
AC: 20
MANA: +30 ENDUR: +30
Emerald Jungle: ??? (Monster mission). Never done it personally, but would think it's in line with the kith mission.
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Semi Hardcore
Diamond Studded Coldain Historical Seal - LORE
Augmentation type: 7 8
Slot: HEAD ARMS WRIST HANDS CHEST LEGS FEET
AC: 14
STR: +7 STA: +7 WIS: +7 INT: +7 HP: +70 MANA: +70 ENDUR: +70
SV FIRE: +7 SV DISEASE: +7 SV COLD: +7 SV MAGIC: +7 SV POISON: +7
Avoidance: +15 Regeneration: +7
Icewell Keep: Reward from completing the Dain 1-3 monster missions. Each mission gives a partial upgrade, so don't have to do all to get stats. 1 drop per mission, so need to do each mission 6 times to get for all in group.
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Gem of Scrykin Magus - LORE
Augmentation type: 7 8
Slot: HEAD ARMS WRIST HANDS CHEST LEGS FEET
AC: 10
HP: +60 MANA: +60 ENDUR: +60
Attack: +20 Regeneration: +2 Mana Regeneration: +2
PoR: Skylance 3 (Arcstone) - Boss drop. Fairly common.
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Shard of the Guardian - NOT LORE
Augmentation type: 7 8
Slot: EAR RANGE FINGER
AC: 25
HP: +25
DoD: Dreadspire Keep - Shadowy Student. Need flag, but the camp itself isn't *that* bad, and spawn rate seems to have improved.
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Hardcores Only
Steelward Stone - LORE
Augmentation type: 7 8
Slot: HEAD ARMS WRIST HANDS CHEST LEGS FEET
AC: 20
HP: +45 MANA: +45 ENDUR: +45
PoR: Sverag/"Jail" camp - An Imprisoned General. Could be my bad luck, but one named in 60 mobs
Only 1 ph in camp (an imprisoned enemy), other prisoner is ph for An Imprisoned Hero.
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Jagged Fragment of Bloody Steel - LORE
Augmentation type: 7 8
Slot: FACE EAR NECK SHOULDERS BACK RANGE FINGER WAIST
AC: 15
HP: +70 MANA: +80 ENDUR: +80
Spell Shield: +2% Mana Regeneration: +2
PoR: Sverag/A Hero's Challenge (Hard). Drops from final boss. Rare drop.
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Stonewarden - NOT LORE
Augmentation type: 7 8
Slot: HEAD ARMS WRIST HANDS FEET
AC: 25
HP: +25
DoD: Dreadspire Keep - Alex Hutchison. Rare drop from a mob that has 60+ PH's. Only do this if you have have endless amounts of time and nothing better to do (only 0-5 ac and 25hp upgrade over the RSS drops).
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Black Gemstone of Suffering - LORE
Augmentation type: All slot types
Slot: HEAD FACE EAR NECK SHOULDERS ARMS BACK WRIST RANGE HANDS PRIMARY SECONDARY FINGER CHEST LEGS FEET WAIST
AC: 18
STA: +20 CHA: +20 WIS: +20 INT: +20 AGI: +20 HP: +200 MANA: +150
SV FIRE: +18 SV DISEASE: +18 SV COLD: +18 SV MAGIC: +18 SV POISON: +18
Regeneration: +4 Mana Regeneration: +4
GoD: Final Reward from Breakdown in Communication. I realize there is a lot of raid level content involved in the later stages, but it's a must if you're a fanatic. Up to level 10, you only need KT Grand Summoner as a raid - rest should be groupable. That's a 10ac 140hp aug.
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I realize it's much of a repetition of Galelor's initial post - my main contribution was the organisation into 3 groups. I think obtaining augs in this order gives you pretty much the most bang for the buck. Fanatics can refer to the post on Shadowknight forums for augs to fill the last slots, but this should serve as a basic introduction to the must-haves for every ac freak out there. I also recommend
http://crucible.samanna.net/viewtopic.php?t=386 for zonewide rare drops and
http://samanna.net/gen.info/prog.dod.shtml for an overview of the DoD mission rewards.