Adept of Bloodletting - More effective bloodletting, longer lasting bloodsteep, less damage taken on both.
Agile Coward - Skrugga - Raises maximum dexterity to 19. You still have to use gear/trains to get it there. Expensive edge.
Backbreaker - More effective spinebreaker, less lag on a missed spinebreak. [Very useful edge]
Bloodmage's Cunning - Mundunugu - Sets maximum Intelligence to 16, Wisdom to 17. You still have to use gear/trains to get there. Very expensive edge.
Brutalizer of the Handicapped - Pierce the defenses of a blind opponent more easily. Doesn't work against Maelstrom warriors.
Bully's Confidence - When demoralizing a foe, you get a +morale effect.
Bully's Heist - You can steal from foes you've spinebroken or demoralized. Failed attempts may initiate combat. [Doesn't initiate often, but steal success is still low]
Compact Frame - Can bash gnome-sized opponents if normal sized yourself. However, these bashes are fairly inaccurate.
Demon in the Woodpile - Auto-attack good-align priests while berserked, but will resist knock-out effects and unholy damage. [Handy edge, set-back can be both useful and annoying. Auto-attacks angels/archons too.]
Desecrated Hide - Can block blessed weapons more easily. Very strong effect if the orc has used Desecration recently.
Disease Carrier - Lowers resistance to catching Plague/Crimson scourge, but negates some of their effects completely.
Flailing Fallback - Will do an automatic elbow/knee when using fallback.
Furious - Bonus to Fury of the Clan. A short-term effect of a Berserker's Berserk skill.
Gifted Scavenger - Increased bonuses from scavenging.
Glutton - Can eat even when full. [Don't choose if you're going to get Thrak's Tatt]
Goadmaster - Demoralize will effect entire groups standing together.
Gravenap - Mundunugu - Use gravesleep more often, and recover more quickly. [Very nice edge.]
Grimwright - Bonuses to Desecration, Set snares, Fashion war banner, Pillage(Shig-ru) and Fetish(Mundunugu)
Heavy Foot - Bonuses to Kick, Punt(Shig-ru), Cheap shot and Trample. Trampling a victim will drain their moves.
Lasher - Higher success with Lash. More damage, and adds demoralization effects.
Lug - Mamlauk - Sets maximum Strength to 24. You still need to use gear/trains to get it there.
Marcher – Regenerate moves more quickly.
Masochist's Endurance - Shig-ru - Sets maximum Constitution to 25. You still need to use gear/trains to get it there.
Master of Bloodletting - Adept of Bloodletting - Exsanguinate skins will contain more blood than normal.
Opportunistic Bastard - Extra hits when using 'murder' on someone who can't see you.
Opportunistic Carnivore - Bonus to Savage feeding. Savage feeding will satisfy hunger.
Pit Fighter - Brawling - Add's occasional malediction to brawlings techniques: Elbows will bloody noses (like cross), knees will lag (1 round) and kicks will give -dex. Occasional chance to auto-elbow in combat.
Primal Terror - More vulnerable to fear poison/magic, but more likely to resist it's effects.
Savage Cunning - Small chance to avoid traps and snares everwhere. Good chance to avoid them in Caves/Swamps.
Savage Trapper - Set snares more frequently, and with greater effects.
Shieldbreaker - Bonus to Shield Cleave. Cleaving will also demoralise, and do damage if dual-wielding axes.
Slaver - Bonus to enslaving races, and is able to enslave some races other orcs cannot.
Slippery Coward - Skrugga - Greater chance to dodge/evade/take cover when hurt. Less likely to eat a parting blow.
Standard Bearer - Fight more effectively than normal while holding a war banner
Superior Leverage - Bonus to all two-handed weapon techniques.
Survival Instinct - Will parry more, flee faster and damage more with Last stand blows when hurt.
Territorial - Better at using corpseguard to block out-of-range looters.
Thick Skull - Bonus to headbutts. Will resist blows aimed at their head better (jacking, cranial, etc)
Undersight - Allows limited scanning in the underdark.
Vital Strikes - Bonus to opportunity strike, (more damage?) and a further bonus on blinded opponents.
Will of the Slave - Gain more moves with Forced march, and recover faster from the -con affect.