This is a nice build i used in RA alot, though it requires some backup healing.

Attributes:
12 Spear Mastery
9+1+1 Strength
9+1 Tactics

Skills:
Barbed Spear
Stunning Strike
Holy Strike
Distracting Throw
Flail
Enraging Charge/"For Great Justice!"
HEaling Signet/Lion's Comfort
Resurrection Signet

Equipment:
Tactics or Strength shield +30 hp -5^20%
Sundering, Furious and/or vamperic spear of fortitude.
All Survivor runes
tactics minor rune
strength helm plus strength rune
Vital/attunement Runes
Superior/major/minor Vigor

Usage:
- Use enraging charge or for great justice to build up adrenaline and use flail in a good position so you dont have to chase people/foes much.
- Start with Barbed Spear before you use distracting or stunning strike so you interupt or daze them. Use stunning strike mainly on caster foes (monks mostly) and sometimes on non caster foes to do extra damage.
- Use holy strike on spirits and minions, or for extra pressure dmg.
- Use healing when needed.

Variants:
For great justice doesnt cancel Flail which makes chasing or kiting(moving around running away) harder. Lion's comfort or healing sig doesn't rly matter otehr than that Lion's comfort uses one strike of adrenaline so you need to make a hit again before you can use another adrenaline skill.
You can also put any other IAS(increased attack speed) stance instead of flail. But since you're using a ranged weapon i choose for flial. which might not entirely be the right choice.