ToME: the Tales of Maj'Eyal

General Egos
of Readiness - As long as this weapon is equipped (in either main or secondary) swapping weapons with X takes no time.
of True Striking - Increases accuracy and crit chance.
Bursting (Element) (greater ego) - Critical strikes from this weapon burst, inflicting X additional (element) damage in a radius of 1.
of True Flight (greater ego) - Increases accuracy, slightly increases range, and doubles projectile speed.


Bows
of Splitting - Chance arrows you fire will hit an additional adjacent target.
Perforating - Arrows shot from this bow inflict bleed damage.
of Piercing - Allows your arrows to pierce through multiple targets. X% chance of piercing (checked against every mob along it's flight path).
of Puncturing (greater ego) - Increases critical damage multiplier and gives physical resist penetration.

Slings
Ricocheting - Chance bullets fired will hit an additional adjacent target.
of Shrapnel - Bullets fired from this sling inflict X% of damage dealt to adjacent tiles as bleed damage.
of Force - Chance to knockback on hit.
of Great Force (greater ego) - Chance to knockback on hit. Knocking a target into another target will deal additional damage and knock both targets back.
Crushing (greater ego) - Chance to daze on hit and gives physical resist penetration.

General
Hunter's - +30% damage against natural enemies: bears, snakes, ants, wolves, etc. (master)
Reliable - Large boosts to damage and accuracy, prevents critical hits.(master)
of Twilight - Additional light and darkness damage on hit, projectiles illuminate darkened squares they pass through and darken lit squares they pass through. (arcane)
Empathic - Element of projectiles change depending on the negative effects the wielder has. Burning = fire, poison = nature, slow = temporal, etc. If more than one negative effect is present, one is chosen randomly per shot. If no negative effects are present, projectiles are physical as usual. (nature)

Bows
of Proximity - Arrows deal greater damage at close range. (master)
Farcasting - Arrows deal greater damage at long range. (master)
Warper's - Arrow travel time is instantaneous. (arcane)
Sniper's - Lowers your armour and movement speed, deals double damage to enemies unaware of your presence. (master)

Slings
of Malice - Deals increased damage against stunned/dazed/pinned foes. (master)
of Zigur - On hit, 3% chance to silence target for three turns. (arcane-disrupting)
King's - On hit, 3% chance to blind target for three turns, raises willpower and silence immunity, +20% damage vs. giants. Also rhymes nicely. (nature)
Thunderous - On hit, 3% chance to confuse target for three turns, deals additional lightning damage, alerts enemies within a radius of six around the target. (arcane)

Both Bows and Slings
Empowered: (greater ego) +(0.10-0.30) Archery Prowess mastery
Veteran: (greater ego) +(0.10-0.30) Archery Training mastery
Specialist: (greater ego) +(0.10-0.30) Archery - Bows mastery or Slings, depending on base item
Revealing: (lesser ego) +1 light radius, +(2-10) see invisible, activates for Flare (lvl 3), costing 20 energy out 30/30.

Bows
Light: +(0.2-1.00) Stamina per turn, -1 range
Heavy: 10% fatigue, +(5-30) physical power, +(5-30) APR

Critique on preceding ideas:
I think that Bursting, of Shrapnel, and depending on implementation of Splitting, of Piercing, and Ricocheting could have unintended synergies with each other and some skills (Volley of Arrows, Scatter Shot, Dual Shot, Piercing Shot). Specifically, multiple hits combined with AoE effects would lead to double or more of the intended damage.

Empathic What if it just added ranged project damage instead? Then it could increase in power the more negative effects you had on you.

Virulent
Corrupted blood damage type. Corpsebow is nice for low levels but there are a LOT of better bows once you get bigger.

Blinding
Light damage type with a chance to blind.

of (foo)-slaying
Increases damage against (foo)-type monsters by 20%.

of (foo)-bane
Increases damage against (foo)-type monsters by 40%. (greater ego)

of time-lapse
5% chance on hit for TBTC rank 3, Flawed Design rank 3, or the Wasting effect from Ashes to Ashes rank 3.