Astral speech
Paladin Utility 2
You speak with such compelling conviction that others find it difficult to refute your beliefs and claims.
Daily ✦ divine
Personal
Effect: You gain a +4 power bonus to Diplomacy checks until the end of the encounter.
Astral Speech is a 2nd level Paladin utility power.[PH:93]
It is considered a poor choice, being situational to non-combat campaigns.