Bonus spell damage

• Bonus spell damage is applied to spell (Psion and Elemental) attacks only.
• Percentage bonus is applied before non-percentage bonus. For example, say a spell should do 50 damage and the hero has +10%, +10, the damage would be 50*1.1+10=65.
• Amounts for Skills are affected by S, the number of skill points invested in the skill.
• Note that spells are still governed by their intrinsic damage caps, though percentage increases also increase the cap.

Source	Source type	Increase	Duration	Requirements	Notes
ion sprite	Sidekick	25%+2*S	120 minutes		Bonus is doubled for Lightning Bolt
Mirror of Nitocris	Offhand Item	50%	Always	Level 70	-5 to the cost of combat skills
Casino's Choice award	Accessory	40%	Always		+5 levels to sidekick performance. (Does not exceed level cap.) +5% capacity to all resistances
Polar Star	Offhand Item	25%+50	Always	Level 55
Mento's fleshraker wand	Melee weapon	25%	Always	Level 9
Star	Melee weapon	25%	Always	Level 5	+15% Intellect +3 PP per turn Rental equipment is lost at rollover
the watch of Dr. Somnus	Talisman	25%	Always		psychic spells only +25% psychic resistance Amateur hypnosis -75% dodging ability
turkey feather wand	Melee weapon	25%	Always		+5% chance of spell critical hits +5% chance of enemy fumbles Channels the power of terrible movies
'Senging in the Rain	Item	20%	60 minutes		Obtained from ginseng supplement
Agimat's Charm	Talisman	20%	Always		Using skills costs -3 PP Unlocks Implosion -20% offense
Bowler's Sticky Wicket	Talisman	20%	Always		+30% Intellect +5 damage absorption -15% defense
ice cool whip	Melee Weapon	20%	Always	Level 15	ice spells only Successful hit weakens opponents (by 10 points). Cool as Ice
karma charm	Accessory	20%	Always	Level 5	Increases the effectiveness of reputation-affecting choices. Using skills costs -1 PP
overwhelmingly cool duster	Shirt	20%	Always		Regenerates PP as a function of level Villains find you +10% faster Makes for dramatic entrances (and exits)
Secretive Manacles	Talisman	20%	Always		+20% to your maximum Power Points Regenerates PP as a function of level -15% defense
slag sleeves	Gloves	20%	Always	Level 15	fire spells only
Stop Thief! Brand Outeroos	Talisman	20%	Always		+20% to your maximum Power Points Villains find you +10% faster Unlocks Stop Thief! -20% to initiative
Tempest's Brooch	Talisman	20%	Always		+30% Intellect +5 damage absorption -15% defense
brain coral ion stone	Accessory	15%	Always	Level 10	psychic spells only -1 to the cost of combat skills
Cosmic Concentration	Item	15%	60 minutes		Obtained from assembling depleted dust -1 to the cost of combat skills
fire opal ion stone	Accessory	15%	Always	Level 10	fire and electric spells only +3 PP per turn
aquamarine ion stone	Accessory	10%	Always	Level 9
blue smoke darts	Ranged weapon	10%	Always		electric spells only Improved computer interaction
ceremonial knife	Melee weapon	10%	Always		+5% chance of critical hits Some of critical weapon damage returned as PP
command chopper	Transportation	10%	Always		Grants wearer ability to fly
fall's staff	Melee weapon	10%	Always	Level 8
insanely super XL bowl	Accessory	10%	Always	Elemental	+10% item drops +10% chips drop
Jill's elegant gloves	Gloves	10%	Always		+10 to maximum PP -1 to the cost of combat skills +1 skill point applied to combat skills if Spring-Heeled Jack's boots is worn
orwhal hair wand	Melee weapon	10%	Always	Level 15	+10% chance of spell critical hits -1 to the cost of combat skills
processor spear	Melee weapon	10%	Always		electric spells only Improved computer interaction
The Fire Within	Elemental Passive Skill	S%	Always	Level 14	10% + S% max PP
bronze flute	Offhand Item	8%	Always	Level 8
gothy black dress	Full-body suit	5%	Always	Level 6	+15% Intellect
illuminum blouse	Shirt	5%	Always	Level 14	+5 electric damage
Marty Crouch's magic chest	Offhand Item	5%	Always		Summons 7-11 "magic trick" combat items per day.
Marty Crouch's magic chest (empty)	Offhand Item	5%	Always		Summons 7-11 "magic trick" combat items per day.
UltraSport slacks	Pants	5%	Always	Level 12	+20 to maximum PP
Aura: Mystery	Psion Skill	2*S + (level/2)	30 minutes	Level 4	-1 PP to the cost of combat skills
Ember in a Bottle	Talisman	.5 x Level	Always		Unlocks Elementals' Core Tap -2 to maximum HP
Crystallizer of Dreams	Offhand Item	50	Always	Level 40	+10% damage absorption +10% to initiative
enerbun sphere	Offhand Item	20	Always	Level 12
illuminum skirt	Pants	20	Always	Level 14	+7 electric damage
Ebon Eye of the Deep	Talisman	15	Always		+5% of damage returned as PP -20% chips.
salty hauberk	Shirt	15	Always	Level 10
staff of meeting	Melee weapon	15	Always	Level 10
archron's staff	Melee weapon	10	Always	Level 7	-5 seconds to the duration of each turn
channeling blade	Melee weapon	10	Always	Level 5 Psion	+10 psychic damage - for Psions only
glowstaff	Melee weapon	10	Always	Level 10
Gulliver's maul	Melee weapon	10	Always	Level 12	+3% of weapon damage returned as PP
Livia's icicle pendant	Talisman	10	Always		+5 ice damage +10% ice resistance
MechaPinata paws	Gloves	10	Always	Level 20	+10 offense MechaPinata Fortitude
pandimensional scepter	Melee weapon	10	Always	Level 9	-1 to the cost of combat skills
The Murk's Silk Shirt	Shirt	10	Always	Level 9	Using skills costs -1 PP -5 seconds to the duration of each turn
Blockee wand	Melee weapon	6	Always	Level 3
focusing mirror	Offhand Item	6	Always	Level 6
isinglass orb	Offhand Item	6	Always	Level 4
number one fan	Offhand Item	6	Always		+3 PP per turn
Blockee orb	Melee weapon	5	Always	Level 3	psychic spells only +5 psychic damage
frusion neoscepter	Offhand Item	5	Always	Level 4
lark dances	Ranged weapon	5	Always
Pawn of Destruction	Offhand Item	5	Always	Level 5	+5 weapon damage
power company pajamas	Full-body suit	5	Always		+5 electric damage - for Elementals only
ball of fire	Offhand Item	3	Always
filigreed foil hat	Helmet	3	Always		+3 weapon damage
Starsday	day of the week	3	Always
witch's hat	Helmet	2	Always
nicknack	Accessory	1	Always	Level 7	+1 foe toughness +1 weapon damage (ranged or melee) +1 damage absorption +1% item drops +1% chips +1% effectiveness from your sidekick
Smoldering with Fury	Item	scales with level	90 minutes		Obtained from rusty brick Melee damage Ranged damage

Notes

• Discovering the bonus on Starsday was part of the March 2009 spading bounty.