Anthem of Civilization is an encounter power granted by the Anthem of Civilization feat.
Anthem of Civilization is used through the Channel Divinity class feature[Dr374:92][DrMA:110]
Anthem of Civilization
Feat Utility
You inspire your allies to work in concert to turn the tide of battle.
Encounter ✦ divine
Personal
Requirement: Channel Divinity: You may only use one Channel Divinity power per encounter.
Trigger: You make a skill check and dislike the result,
Effect: Until the end of your next turn, you or an ally of your choice within 3 squares of you gains an additional +2 bonus to attack rolls against any enemy he or she flanks.