http://heroclix.com/heroclix/avenger...#axzz1uaOyfkJl

Scenario: You currently have Void A and Sentry B on your team. The opposing player damages Sentry B, and you replace him with Void B. During your next turn, would you be able to place Void A adjacent to the enemy character that damaged Sentry B? The power doesn't seem to specify that the replaced Sentry specifically needs to be one that the Void figure using the power replaced.

Obviously this doesn't seem to be the intent of the power, but that is how it's reading to me.

"Void" in this case refers to Void A, so Sentry refers to Sentry A, not Sentry B.

It's self-referential.