I put up 2 builds. Both item independant.
Basics Tactic:
Oath, attack with word of exchange (protection) to make the target
easier to hit and enable rune of vengence (even if you miss). The
wait for an ally to hit, and smack it with overwhelming strike for a
solid 2 attacks per turn.
Extras:
Painful oath adds to runepriest and avenger attacks (it's 1/turn, so it'll work on the reaction).
Supplement with avenger minor (not immediate) action attacks (fury's advance, soul forged hammering).
Runepriest powers will help allies hit your target (word of exchange, rune of the conquering sign).
You can heal adds more damage and primes your vengance rune (when you use a daily).
Warlord Friendly with a strong MBA.
Defiant Defender has massive defenses it uses at-will prone to keep
enemies nearby. This works best with a ranged heavy party where
you can take point and allies can trigger your bonus from a distance.
If you have a melee ally, try to go right before him so you can
hit, he can hit, then you can overwhelming strike prone, then he can
shift away.
Also, when you are missed, you get +Wis for all your attacks. Unload soulforge hammering, and fury's assault.
Race: Minotaur: Minotaur and longtooth shifter both have +2 to Str and Wis.
Class: Hybrid, Avenger, Runepriest: Basis of the build
Runepriest Option: Defiant Word: +Wis to damage when missed, no issue with hybrids, and works for all attacks that round
Background: Auspicious Birth:
Paragon Path: Hammer of Vengance: Provides us with a repeatable off action attack
Epic Destiny: Destined Scion: Hitting is good.
Starting Stats
Str 16 Con 11 Dex 13 Int 10 Wis 16 Cha 8
Final Stats
Str 28 Con 13 Dex 15 Int 12 Wis 28 Cha 10
Defenses:
AC: 47 Fort: 50 Ref: 44 Will: 51
Feats:
1: Hybrid Talent (Runepriest Armor Profiency): Very solid Scale + Shield
2: Flail Expertise: Overwhelming strike prones.
4: Power of Skill: Our OA get's a double roll and prones.
6:
8: Heavy Shield
10: Battle Awareness: Prereq, also Covers the times we won't have a Rune of Vengance
11: Painfull Oath: This has no hybrid issues, and will add to runepriest attacks as well
12: Superior Will
14: Superior Fortitude
16: Lightning Reflex (retrain to Superior Reflex at 21)
18: Ubiquitous Shield (retrain to Scale Specialization at 22)
20: Encouraging Shield
21: Slashing Storm: Highly likely to hit at least once, so make a nice zone for yourself.
22: Epic Fortitude
24: Epic Reflex
26: Epic Will
28: Mythic Senses
30: Stout Shield
At-Will:
Overwhelming Strike: Oath benifit on MBA, and provides some much needed positioing and control.
Word of Exchange: Used in protection, it helps our allies hit, which let's us hit again.
Equipment: Alhulak +6, Heavy Shield, Scale +6, Amulet of Protection +6
Assuming 2 attacks per turn
Assuming Oath of emnitiy on Overwhelming Strike
Assuming Painfull Oath on both attacks
Assuming Word of Defiant, or slashing storms (they stack, but are both situational)
Assuming +2 to hit from CA, or word of exchange (they stack, but are both situational)
Word of Exchange:
39 vs AC, (35% miss, 60% hit, 5% crit)
1d8 + 9(str) + 6 (enh) + Wis (9) + Wis (9) = 37.5
Crit: 8 + 9 + 6 + 9 + 9 + 6d6 (21) = 62
Overwhelming Strike:
39 vs AC roll twice (12.25% miss, 87.75% hit, 9.75% crit)
Overwhelming Strike: 2d8 + 9 (wis) + 6 (enh) + wis (9) + wis (9) = 42
Crit: 16 + 9 + 6 + 9 + 9 + 6d6(21) = 70
37.5 * .60 + 62 * .05 + 42 * .87.75 + 70 * .0975 = 69.28
Serene Killer focuses more on damage. Using Serene instead of defiant allows you to take something else for your hybrid talent. In this case, censure of unity. Better in melee heavy parties, this build is designed for everyone to group up on 1 target and decimate it.
====== Created Using Wizards of the Coast D&D Character Builder ======
Killer Bee, level 30
Longtooth Shifter, Runepriest/Avenger, Hammer of Vengeance (PH3), Destined Scion
Runic Artistry Option: Serene Blade
Hybrid Avenger Option: Hybrid Avenger Reflex
Hybrid Talent Option: Avenger's Censure (Hybrid)
Avenger's Censure Option: Censure of Unity
Epic Heroism Option: Strength
Epic Heroism Option: Wisdom
Associate: Trained Young Owlbear
Auspicious Birth (Auspicious Birth Benefit)
Theme: Fey Beast Tamer
FINAL ABILITY SCORES
STR 28, CON 13, DEX 15, INT 10, WIS 28, CHA 12
STARTING ABILITY SCORES
STR 16, CON 11, DEX 13, INT 8, WIS 16, CHA 10
AC: 43 Fort: 43 Ref: 37 Will: 46
HP: 186 Surges: 8 Surge Value: 46
TRAINED SKILLS
UNTRAINED SKILLS
Acrobatics +17, Arcana +15, Athletics +26, Bluff +16, Diplomacy +16, Dungeoneering +24, Endurance +18, Heal +24, History +15, Insight +24, Intimidate +16, Nature +24, Perception +24, Religion +15, Stealth +17, Streetwise +16, Thievery +17
POWERS
Basic Attack: Melee Basic Attack
Basic Attack: Ranged Basic Attack
Longtooth Shifter Racial Power: Longtooth Shifting
Runepriest Feature: Rune of Mending
Avenger Feature: Oath of Enmity
Avenger Attack 1: Overwhelming Strike
Runepriest Attack 1: Word of Exchange
Runepriest Utility 2: Rune of the Final Effort
Avenger Utility 2: Loyal Sanction
Runepriest Attack 3: Fury's Advance. Symbol of Wrath Reversed also a quality option.
Avenger Attack 5: Bond of Foresight Opportunity action don't interfear.
Runepriest Utility 10: Protective Scroll
Hammer of Vengeance (PH3) Attack 11: Avenging Hammer Possibly replace with reserve manuver
Hammer of Vengeance (PH3) Utility 12: Shield of Vengeance
Avenger Utility 16: Summons to Duty Helps ensure we have an ally nearby.
Avenger Attack 17: Soulforge Hammering
Runepriest Attack 19: Rune of Warding Light
Hammer of Vengeance (PH3) Attack 20: Vengeance's End
Runepriest Utility 22: Rune of the Hero's Resolve
Runepriest Attack 23: Rune of Rising Fury Word of healing assault is also a quality option.
Runepriest Attack 25: Rune of the Conquering Sign
Destined Scion Utility 26: Epic Recovery
Destined Scion Utility 30: Undeniable Victory
FEATS
Level 1: Hybrid Talent
Level 2: Light Blade Expertise
Level 4: Unarmored Agility
Level 6: Improved Defenses
Level 8: Power of Skill
Level 10: Spiked Chain Training +3, light blade, dual, and with avenging resolve, it's a 1d12.
Level 11: Painful Oath
Level 12: Weapon Focus (Light blade)
Level 14: Avenging Resolution
Level 16: Divine Distraction Incentive to attack your target
Level 18: Two-Weapon Fighting
Level 20: Two-Weapon Opening
Level 21: Hand of Divine Guidance
Level 22: Righteous Focus More incentive to attack your target
Level 24: Epic Resurgence
Level 26: Divine Mastery
Level 28: Triumphant Attack
Level 30: Nimble Blade
ITEMS
Magic Dragoncloth Armor +6 x1
Amulet of Protection +6 x1
Magic Spiked chain +6 x1
====== End ======
Assuming flanking (CA) with your owl bear.
Assuming 1 other ally is adjacent.
Not assuming triuphant attack or word of exchange.
40 vs AC. (70%, 10% crit)
6.5 (2d4 + AR) + 9 (wis) + 6 (enh) + 3 (feat) + 1 (twf) + 3 (expertise) + 6 (unity) + 9 (PO) + 2 (owlbear) = 45.5
41 vs AC. (93.75%, 19% crit)
13 (4d4 + AR) + 9 (wis) + 6 (enh) + 3 (feat) + 1 (twf) + 3 (expertise) + 6 (unity) + 9 (PO) + 2 (owlbear) +1 (con) = 53
Crit: 52- 9 (painful oath) = 43 * 96% (triumphant attack, i'm not recursing) = 41.28 + 3 (max dice) + 21 (6d6) = 65.28
45.5 * .7 + 65.28 * .1 = 38.378
53 * .93.75 + 65.28 * .19 = 62.0907
+3 (divine distraction)
= 103.4687
Between soulforged hammering, fury's assualt, epic resurgence and divine mastery i'm just going to assume 1 extra attack per turn.
45.5 -9 (painful oath) =
36.5 * .91 + 65.28 * .19
= 45.6182
+103.4687
= 149.0869 / 264
= 0.564723106
Other thoughts:
Variants: Serene with Armor of Faith could make a nice balanced build.
Items: It's very easy to boost damage with some items. Iron armbands of power is a given. Frost is a classic. Symbol of victory is an easy bonus.
Stats: You could drop Wis a bit since avengers reroll. This can open up other races.