Got a couple more.
Warlord - Righteous Brand. Since the bonus lasts till the end of your next turn, you can have an ally benefit from it this turn, and then next turn use Commander's Strike, or Hammer and Anvil or similar ability to have them benefit from it again. Use an action point either turn to possibly get a third use out of it.
Paladin - Hellish Rebuke. Combine it with Martyr's Blessing to just about guarantee you are dealing the extra 1d6+Con damage.
Warlord - Righteous Brand. Since the bonus lasts till the end of your next turn, you can have an ally benefit from it this turn, and then next turn use Commander's Strike, or Hammer and Anvil or similar ability to have them benefit from it again. Use an action point either turn to possibly get a third use out of it.
Paladin - Hellish Rebuke. Combine it with Martyr's Blessing to just about guarantee you are dealing the extra 1d6+Con damage.