OK, here's as complete a list as I can make.
Starting with damage modifiers.
- Spell damage is always "spell damage", no capital letter.
- Ranged damage is almost always "Ranged damage", with capital letter. The only exception is Sniper which is "ranged damage"
- Melee damage is sometimes with capital letter and sometimes without:
Shark's Tooth Necklace, Sockin' it to 'Em, Upgrade Weapons: Serration, Ace Up Your Sleeve, Upgrade Weapons: Elemental, Scratch Your Eyes Out: melee damage
saw glove, special wooden cup, Fighting Club, ham banner, lamp post, quill blade, jack boots, astral spline, Truepenny blade, Bass-O-Matic 77, warmaking baton, hammer time, Thunder in a Bottle, roller blades, spiked gloves, paper machete, peacekeeping baton: Melee damage
- Weapon damage always goes uncapitalized. However, for items it also mentions "(ranged or melee)", which it doesn't for effects. Items with percentile weapon damage do not have this clause
Elemental damage resistance has several forms:
genuine lookalike World Series 2008 ring, Aegis Flux Incapacitor, smart suit, gloveless fingers, forcegloves, fingerless gloves:
resist X damage
Biofeedback:
resistance to X damage
Stone Armor, Upgrade Armor: Resistance, Tangled Up in Two, Abaddon charm, Upgrade Armor: Fireproof, hooded cloak, Livia's icicle pendant, shield of Zion, letter shirt, trylon tights, hot pants, knit cap, snug breeches, Toasty Heart, tropical fleece, polyester suit:
X resistance
lab suit, noise-reducing headphones, teardrop
necklace,
pearl necklace, black hood, pseudo-chitin armor, Ring of Fellowship:
X damage resistance
Also, the resistances are usually all in one line except for the following cases, where each resistance is on a separate line:
letter shirt, trylon tights
Bonus to hit usually goes by the following two forms. All items have it as
to hit. All effects have is as
to-hit. There is one exception: Cinematic has
to-hit ability.
HP Regeneration usually goes by
+X HP per turn, with the following exceptions:
Needs Stitches: Lose some HP
/turn (scales with level). (Better: Lose some HP per turn (scales with level))
Starfish Regeneration, Aura: Vigor:
Regenerates HP
each turn. (Better: Gain some HP per turn)
Toasty Heart:
Regenerates X HP/turn
PP Regeneration is usually
+X PP per turn.
Proper Hydration: "Regenerate PP
every turn" (Better: "Lose some PP per turn", which will also fit Internal Injuries: "Lose some PP per turn (scales with level)").
Regarding stat modifiers, they are capitalized for all items (Strength, Intellect, Reflexes) but non-capitalized for all effects.
Also, when all stats are modified at once, corrupt amulet, diamond, Coward's Cloak, and crib sheet have them one per line, Aqua Marine, Laaaaazyyy, and Strong Sense of Self have "to all stats".
Maximum HP goes by many different names:
Euphoria, Utter Wretchedness, Boolean:
maximum HP
Well Packaged:
max HP
Reed's Brassard, Angriest Man's Squeezeball of Rage, Atmos Spear (extended), Astral Monkey's Paw
Necklace, Gilligan's golf club, mighty quill, genuine lookalike World Series 2009 ring, Raskolnikov's fur hat, righteous shades, Viking Games jersey:
to your maximum Hit Points
Ring of Fellowship, Aegis Flux Incapacitor, silver star, trilobit, trilobyte, fullerene, shield of Zion, Ember in a Bottle, silver-plated star:
to maximum HP
Maximum PP really likes variety:
Well Packaged:
max PP
The Fire Within:
PP capacity
Thunder in a Bottle, genuine lookalike World Series 2009 ring:
to your maximum Power Points
Rayed 5:
maximum PP
scale mail, silver star, fullerene, infernium gloves, digital robes, silver-plated star:
to maximum PP
Waxing Nostalgic has: +4% of weapon damage
is returned as PP. All other PP (and HP) returning things don't have the word "is".
When modifying initiative, items have "+X to initiative". Effects have "+X initiative".
Turn duration modifiers go by
X seconds to the duration of each turn. However, not always:
Heroic Efficiency:
Reduces turn length by X seconds
Old Man Walking:
X seconds/turn
dodging ability is named
dodging ability for items, but
dodge for effects. Cinematic is unique in having
dodge ability.
XP gain for items is
XP per combat. For effects it is
XP gain. There are exceptions even to this:
Scintillating:
xp gain
In Communicado, It's in the Cards:
XP/turn
Combat chance goes by Increased chance, except for:
Sinus of the Shark:
Increases chance
Sidekick efficiency:
Green Thumb:
benefit from sidekicks
judo kid gloves, Model T-1000:
effectiveness from your sidekick.
Skill cost modifiers go by three different names:
Thunder in a Bottle:
Using skills costs X PP
Aura: Mystery:
X PP to the cost of combat spells
Mirror of Nitocris, illuminum gloves:
X to the cost of combat spells
Extra attacks for items go by
+X extra attack(s) per turn.
The only effect giving it, Keyed Up, uses
+X bonus attack per turn
Foe toughness for items has a dot at the end. For effects it does not.
There is general inconsistency that some modifiers don't have a dot at the end of the line and some do. I can list them for you if you want.
That should be all of them. I hope this helps.
Edit: removed some which were corrected