Riddle

Level 1 of the Dungeon
[Shop] Peytwuox's Antique Weapon Shop
  a +0 dagger (52 gold)
  the +9 staff of Olgreb {rPois∞} (2600 gold)
    It enhances your poison magic.
    It grants immunity to poison.
    It can be activated via the 'a'bility menu to radiate toxic energy, with
    effectiveness depending on Evocations skill.
  the +1 trident of Spite {holy, rPois Will++} (949 gold)
    rPois:     It protects you from poison.
    Will:      It greatly increases your willpower.
  a +0 dagger (52 gold)
  a +0 whip (65 gold)
  a +2 rapier of electrocution (572 gold)
  a +0 club (26 gold)
  a +0 club (26 gold)
  a +5 dagger of protection (764 gold)
  a +0 whip (65 gold)
  a +0 short sword (78 gold)
(4, -10, D:1)
  a +0 ring mail
(7, -15, D:1)
  a +0 hand axe
(8, -4, D:1)
  a +0 whip
(10, -47, D:1)
  a potion of invisibility
(11, -9, D:1)
  a +0 ring mail
(14, -7, D:1)
  a +0 buckler
(23, -33, D:1)
  a +0 sling of freezing