Weigh the heart and mulible targets

Hi just got curious, how do you handle Weigh the Heart at superior if there are multible target methuselah because of action like border skirmish or Inquisition? Do you choose one of the methuselah or can you put a corruption counter to one minion from each target? Weigh the Heart [Action Modifier] Action Modifier [Auspex] Auspex & [Serpentis] Serpentis [aus] [ser] +1 bleed. After playing this card, you cannot play another action modifier to further increase the bleed for this action. [AUS] [SER] Only usable as a action is announced. If this action is successful, put a corruption counter on a minion controlled by the target Methuselah (after resolving the action). Artist(s): Avery Butterworth Set(s): KMW:C

You put a corruption on a minion. That minion must be controlled by (any of) the target Methuselah(s). Prince of Paris, France Ratings Coordinator, Rules Director