Well, it is finally happening.
I am running "Hell's Heart" from Sly Flourish's "Fantastic Lairs" using an Ancient Gold from the Level Up bestiary. I told the players to all create their PCs as if they had been dragon hunting from level 1 to 20. I gave them 2 rare and 1 very rare permanent item, and the same single use. I will not tell them what the situation is until PCs are locked down.
Because this is still and RPG, this was my conversation starter to get everyone into character and to build a bit of a group dynamic:
Alright @everyone I want each of you to introduce your dragonslayer IN CHARACTER by giving your account of your part in tking down Divassyryxx, the two headed black/green wyrm of the Blighted Moors. Include at least one other PC in your description. This is an improv exercise so it is "Yes, And" -- that is, whatever you say is true (insofar as your PC remembers it) and should set up other PCs to riff off.
The point of the exercise is to tell us about your character -- their capabilities and personality -- as well as establish a party dynamic before we sit down to play. Pretend you are spinning this tale in some minor Baron's hall where you have chosen to eat and drink for free this night.