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Song of Speed
Bard Utility 6

With a rousing refrain, you imbue an ally or yourself with superior speed and agility.

Ranged 10

Target: You or an ally

Effect: Until the end of your next turn, the target gains a +4 power bonus to speed and can shift 1 extra square whenever he or she shifts.

Song of Speed is an encounter power available to bards at 6th level.[AP:10]