4 Oct 2004
You can’t pick a card that can’t legally be returned to the battlefield. If there are no cards that can be legally returned, then you can’t pick one.
4 Oct 2004
Remember that the returned creature just came under your control, so it can’t attack until you start a turn with it under your control.
4 Oct 2004
Each player chooses which one of their exiled cards to return during each of their upkeeps.