Did you know, that ... (Part 63)

.. when a vampire to which the Rack is directed, is changing the controller permanently, e.g. by Graverobbing or Form of Corruption, the Rack is still controlled by the player who controlled the vampire in the first place. This is because, the Rack is not played on the vampire, but is put into play and a vampire is chosen where the Rack is targeted to. This has two consequences:

• The blood provided by the Rack is gained during untap phase of the Rack's controller, not during the untap phase of vampire's controller.
• The action to take control of the Rack is directed against the controller of the Rack, not the controller of the vampire.

Reference: VtES Usenet Newsgroup