The Pocket Veto is NOT immunity. You can’t just play it on yourself or someone else for week-long safety. It must be used on someone who is on the block, and you must announce your decision to use it before the 1 hour decision time after each Veto Competition expires. That’s an important part. It does NOT immune you if you decide to use it one someone else. The most you can do ahead of time with the Pocket Veto is pre-play it by locking in who you’d play it on if they went up on the block, but it cannot be played after that 1 hour veto window, as after that voting will start.
Due to the possibility that TWO vetos can be played in one week, each HoH will be required to declare to me TWO possible replacements with their nominations.