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
Mirror of Nitocris	Offhand item	50%	Always	Level 70	-5 to the cost of combat spells
Polar Star	Offhand item	25%+50	Always	Level 55
Mento's fleshraker wand	Melee weapon	25%	Always	Level 9
karma charm	Accessory	20%	Always	Level 5	Increases the effectiveness of reputation-affecting choices. Using skills costs -1 PP
Bowler's Sticky Wicket	Talisman	20%	Always		+30% Intellect +5 damage absorption -15% defense
Secretive Manacles	Talisman	20%	Always		+20% to your maximum Power Points Regenerates PP as a function of level -15% defense
Tempest's Brooch	Talisman	20%	Always		+30% Intellect +5 damage absorption -15% defense
aquamarine ion stone	Accessory	10%	Always	Level 9
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 spells +1 skill point applied to combat skills if Spring-Heeled Jack's boots is worn
The Fire Within	Elemental Passive Skill	S%	Always	Level 14	10% + S% max PP
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 spells
Ember in a Bottle	Talisman	.5 x Level	Always		-2 to maximum HP
Crystallizer of Dreams	Offhand item	50	Always	Level 40	10% physical 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.
staff of meeting	Melee weapon	15	Always	Level 10
archron's staff	Melee weapon	10	Always	Level 8	-5 seconds to the duration of each turn
channeling blade	Melee weapon	10	Always	Level 5	for Psions only +10 psychic damage - for Psions only
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
pandimensional scepter	Melee weapon	10	Always	Level 9	-1 to the cost of combat spells
The Murk's Silk Shirt	Shirt	10	Always	Level 9	Using skills costs -1 PP -5 seconds to the duration of each turn
isinglass orb	Offhand item	6	Always	Level 4
number one fan	Offhand item	6	Always		+3 PP per turn
frusion neoscepter	Offhand Item	5	Always	Level 4
Pawn of Destruction	Offhand Item	5	Always	Level 5	+5 weapon damage
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
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.