Guild Wars 2

Is there a dominant strategy for defeating each of the NPCs? In game theory a dominant strategy is one that is always correct regardless of what the opponent does – like say “Use bluff 60% of the time” – or something like that?

Or is it like Rock/Paper/Scissors?

Any tips for strategies against each NPC?

The charr is scripted to heal every other turn. As for the others I’m not too sure. I was able to beat all except the norn pretty quickly, though the human’s “woohoo” took a while to get lucky and work around. But I think its more luck based/kind of learning their patterns (besides which master skill to use). If I can actually beat the norn I’ll get back to you.

Dulfy has a guide that gave a few tips:
http://dulfy.net/2013/07/08/gw2-belchers-bluff-activity-guide/

There really aren’t any strategy because the NPCs can spam their signature moves as much as they want, it’s pretty much all based on luck, since they know what ability you use.