Update 21 named items

Forum threads:
 * Haunted Halls and Thunderholme wilderness items

The Haunted Halls
The various bosses can drop the following named loot:
 * Giant Skeleton: Lantern Ring, Purple Dragon Shield
 * Mummy: Magestar, Manual of Stealthy Pilfering
 * Miior: Libram, Eidolon Necklace
 * White Dragon: all the items

- Trinket
 * Magestar Absorption: This effect absorbs harmful spells targeted at the wearer and heals the wearer by 20d10+200 Hit Points. 5 charges. Recharge 5/rest.
 * Exclusive
 * Upgrade:
 * 10 charges

- Necklace
 * Eidolon Summons: On Being Damaged: Summons a Shadow Puppeteer for 30 seconds and can be created once every 120 seconds.
 * +1 Exceptional Con
 * +1 Exceptional Dex
 * Upgrade:
 * Lower cooldown to 80 seconds
 * +2 Exceptional Con ??
 * +2 Exceptional Dex ??
 * Lower cooldown to 80 seconds
 * +2 Exceptional Con ??
 * +2 Exceptional Dex ??

- Ring
 * +1 Insightful WIS ??
 * 5% Chance On Harmful Spellcast: Do an additional 4d6 Light damage.
 * Upgrade:
 * 5% Chance On Harmful Spellcast: Do an additional 6d6 Light damage.
 * Upgrade:
 * 5% Chance On Harmful Spellcast: Do an additional 6d6 Light damage.

- Trinket
 * Upgrade:
 * Upgrade:
 * Upgrade:
 * Upgrade:
 * Upgrade:
 * Upgrade:

- Orb
 * (exceptional)
 * (exceptional)
 * +10 int
 * +10 cha
 * Upgrade:
 * Upgrade:

- Tower Shield
 * +10 CHA
 * +10 CON
 * While blocking: 20% energy absorption
 * 20% chance to shield bash while attacking
 * Sovereign Vorpal
 * Upgrade:
 * Upgrade:

Thunderholme
These items are found in the chests of bosses of the halls of Thunderholme.

- Cloak
 * Passive: speed up negative level removal
 * Force absorption 10%
 * Deadly X

- Returning Throwing Flask
 * AoE effect on hit:
 * Negative energy damage per hit (10d6)
 * 10% chance to add neg level

- Returning Throwing Hammer
 * Aligned (bypasses alignment-based DR)
 * 15% Chance: 25% Slow
 * Bonus damage to constructs & undead (7d6)
 * 2% Chance to explode in "lightningsphere"
 * 2% Chance to explode in "lightningsphere"

Dwarven Forge crafting
See Wyrm-wrought Crafting.

Raid loot
- necklace from Bone Guardian chest of the Shadow Dragon raid
 * Occultation: decrease all threat by 20%
 * Assassination +4