The Peregrine Dynamo

If the activated ability’s cost contains a choice, such as a creature to sacrifice or a number of counters to remove, the copy uses that same information. You can’t pay the cost again, even if you want to.

The Peregrine Dynamo’s ability targets an ability that is on the stack and creates another instance of that ability on the stack. It doesn’t cause any object to gain an ability.

If an ability is linked to a second ability, copies of that ability are also linked to that second ability. If the second ability refers to “the exiled card,” it refers to all cards exiled by the ability and the copy. For example, if Tidehollow Sculler’s enters-the-battlefield ability is copied and two cards are exiled, they both return when Tidehollow Sculler leaves the battlefield.