Defeating enemies with lightning strikes generated by Gathering Storm will refund a large amount of Super energy. The original text stating "Defeating Arc debuffed targets grants a small amount of Gathering Storm energy" clearly does not match the Super energy refund shown in the video. Killing Arc-debuffed targets also does not provide as much Super energy as defeating enemies with the lightning strikes. Clearly, this is either a missing description or the Exotic armor is not functioning as intended.