If your allowed Complete Divine:
Domain Spontaneity: You may convert any divine spell to one of your domain spells
Glorius Weapons: Expend Turn attempt to give alignment discriptor (Good or Evil depending on which you channel) to yours and allies weapons within 60ft, as a standard action.
Useful spells from CD for warcleric:
3rd: Flame of Faith, temporarily grants weapon flaming burst
Lesser Visage of the Deity, +4 Cha, Resist Acid, cold, electricity 10 (if good) or cold, fire (if evil)
4th, Weapon of the deity, must be using your deity's favored weapon, it gains bonus and spesial abilities based on deity you serve (example

elor favored weapon Heavy Mace, effect becomes +1 flaming Heavy Mace (if weapon has more than +1 bonus it keeps it.)
5th, Divine Agility, improve reflex save, dex, and gives you Spring attack feat
Stalwart Pact, gain combat bonus when reduced to half hp