.. after you used Dis Pater, the bleed cannot be reduced or bounced to another player. This is because Dis Pater specifically can only be used (by its own card text) when a bleed is successful. that is when targeted player is about to loose pool from the bleed. In that sense, Dis Pater falls into the same time window as Spying Mission. It also makes the acting minion save from Archon Investigation, which on the other hand specifically says it is played when an acting minion is attempting to bleed.
- Reference: [LSJ-2005-04-22].