Orcslayer
Base
Class Attack
Fort Ref
Will
Level Bonus
Save Save
Save Special
1st
+1
+2
+0
+0 Favored Enemy: Orc
2nd
+2
+3
+0
+0 Track Orc
3rd
+3
+3
+1
+1 Smite Orc
4th
+4
+4
+1
+1 Favored Enemy: Orc
5th
+5
+4
+1
+1 Hate Frenzy
6th
+6
+5
+2
+2 Favored Enemy: Orc
7th
+7
+5
+2
+2 Damage Reduction
8th
+8
+6
+2
+2 Favored Enemy: Orc
9th
+9
+6
+3
+3 Uncanny Dodge
10th
+10
+7
+3
+3 Favored Enemy: Orc
Hit dice: d10
Orcslayers are those individuals who have a burning hatred of orckind, usually people who were hurt or had someone close to them (parents, relative, close friend) killed or injured by orcs. The nature of Orcslayers precludes half-orcs from being Orcslayers, not to say that it could not be done.
Race: Any non-half-orc
Base Attack Bonus: +6 (+1*)
Special: Characters wishing to become Orcslayers must have a reason to sufficiently hate orcs to devote their lives to destroying them. Alternatively, you could allow dwarves to play Orcslayers without this hatred.
*: Characters who begin their careers with a deep-seated hatred of orcs can, with DM permission, become Orcslayers right away.
Favored Enemy: Orc: The Orcslayer gains a +1 bonus on Bluff, Listen, Sense Motive, Spot, and Wilderness Lore checks when using these skills against orcs. They also gain a +1 damage bonus vs. orcs. At levels four, six, eight, and ten, they gain an additional +1 bonus on skill checks and damage rolls, i.e. +2 at level 4, +3 at level six, and so on, up to +5 at level 10.
Track Orc: As per the feat Track, except that the Orcslayer may only use it when tracking orcs. If they have the normal feat Track, Orcslayers gain a +1 bonus on Track checks.
Smite Orc: Similar to a paladin's Smite Evil, once per day an Orcslayer may attempt a smiting attack (normal melee). If the attack is successful, the Orcslayer gains 1 extra point of damage per level of Orcslayer she possesses.
Hate Frenzy: At fifth level, Orcslayers have learned to focus their hatred so much that they can work themselves into raging frenzies. While in a frenzy, they gain +1 to-hit and +1 damage per two levels. This frenzy lasts for d4 + Con mod. rounds.
Damage Reduction: At seventh level, Orcslayers have learned the usual blows dealt by orcs, and have learned how to avoid the worst of it. They gain 3/-- damage reduction from orcs only.
Uncanny Dodge: Using their training to determine what an orc is going to do through subtle body language, Orcslayers gain Uncanny Dodge (Dex bonus to AC) and Uncanny Dodge (can't be flanked), though only vs. orcs.