Love it. I'm voting yes, but here are some minor observations:
- 2 to 4 days isn't long enough for the bomb timer. Players can only take turns every 3 days, and there won't really be much time for the bomb to move around. I'd make the timer be at least a week.
- Perhaps there could be a "Extend Timer" spell that adds, say, 12 hours to the bomb timer
- Can "Move Timebomb" be cast while a player is holding the bomb?
- I'd be interested in knowing what will happen if a player has negative money and the bomb detonates on them!