Reaper bonus

Named chest loot from quests run on Reaper difficulty has a chance to gain an additional enchantment.

Original list (with the exception of Reaper Ability Boost, these boosts can appear on any named item):


 * Reaper Ability Boost: Provides 2 Reaper Bonus to all Abilities (found on helmets only). These are sometimes referred to as Reaper Hats.
 * Reaper Power Boost: Provides 3 Reaper Bonus to Melee, Ranged and Spell Power ratings
 * Reaper Physical Resistance Rating +3
 * Reaper Magical Resistance Rating +3

Newer slot-exclusive effects added with Update 52:
 * Reaper Goggle Boost: Provides 1 to attack and 1 to spell penetration (found on goggles only)
 * Reaper Armor Boost: Provides +5% AC and +5 PRR (found on body armor only)
 * Reaper Gloves Boost: Provides +1 to all skills and +3 melee/ranged/spell power (found on gloves only)
 * Reaper Boots Boost: Provides +5 PRR/MRR (found on boots only)
 * Reaper Bracers Boost: Provides +1 to saves and +3 MRR (found on bracers only)
 * Reaper Ring Boost: Provides +1 to Spell, tactical, and assassinate DCs (found on rings only)
 * Reaper Necklace Boost: Provides +2 melee/ranged/spell power and +2 PRR/MRR (found on necklace only)

All reaper bonuses fully stack.

Warning: Some upgradeable items might lose their reaper bonus when upgraded, for example via Epic Crafting.

Occurrence rate
Reaper bonus occurs on about 5% of eligible items in reaper mode, with a very small chance to occur in conjunction with another bonus. (Sample size: 211 items. Data source: Google Sheets)