Royal Guards increase Imperial Support based on their supply cost and Rank. Each point of Imperial Support generates 1 Imperial Mandate every 240 seconds.
Imperial Support=50% for Royal Guard's Supply. Depending on the Rank level, the number of Imperial Support increases by x2 (Rank 1), x3 (Rank 2) or x4 (Rank 3). Mastery: +1% of Imperial Support per Royal Guard Support mastery point. Up to a maximum +30%.