Befriend
Diplomacy Utility 10
You know the right things to say to make people like you
Encounter ✦ charm
Ranged 5
Target: One nonhostile creature that has Intelligence 5 or higher
Effect: Until the end of the encounter, you gain a +5 power bonus to Bluff checks and Diplomacy checks against the target.
Befriend is an encounter power available to characters who are trained in diplomacy at tenth level.[PH3:167]