ORCID Play As:
Hold a face down Evil Character from hand here: If an opponent begins a rescue attempt and uses a choose opponent ability or is unblocked, you may reveal the Evil Character here. If you do, the blocking player may add it to battle. Otherwise, it remains here face down.
1. You can't hold a character when you play the fortress unless it is during your Prep Phase. According to the REG, Hold abilities are activated abilities that can only be activated during the Prep Phase, by default. As an activated ability, you don't have to use it.
2. No. The trigger is beginning a rescue attempt and choosing the blocker or not being blocked - you can't reveal and add later in the battle.
3. Yes, if you reveal and add before doing anything else.
4. You can only hold an EC during your Prep Phase, so no.
5. No, the EC must come from hand.
6. You can't add an EC from territory.
7. You can't add it to the same battle, but you can add it to a different battle when the conditions are met.
8. No. Player A can reveal the character when the rescue attempt begins, but Player C chooses to add it to the battle, or not. And like 2, it has to be added before any non-chosen blockers, or not at all.
9. Correct