Here's where my group is currently at:
- We are reaching the end of a campaign and we are going to be switching GM's.
- I have been playing a (secretly) evil Psion who has plans to betray the party before I bring in a new character.
- The new GM will be retiring his character.
The new GM and I have been coming up with a plan to make all of this happen:
- The plot hook for the new adventure will be the new GM's current PC getting kidnapped.
- My character's betrayal will be organizing the kidnapping and attempting to kill the rest of the party
Here's what I've done so far. During rest periods I've been having 1-on-1 conversations with the various party members disguised as a recently deceased authority figure. Afterwards I use Faulty Memory to convince them that they actually saw a vision of the authority figure, and not my disguised PC. (Whether that is a valid use of the power or not is debatable, but the DM allows it for the purpose of the story). These visions are seeds I am planting in order to influence the PC's future actions during a pre-planned "betrayal encounter."
I'm having trouble planning the betrayal encounter. What can I do using the strategies I've already employed to kidnap the PC? I'd rather not just say "Bob gets kidnapped," but have it be the result of a fun, engaging encounter during which a trusted friend (my psion) turns the tables on the party.
If anyone wants to include specifics, the game is 4e. But I'm really just looking for a good strategy to accomplish the betrayal. I will worry about the mechanics once I have a solid concept in mind.