I'm currently working on another new draft of Just Heroes, but this time taking it back to the idea of having separate playbooks for Origins (why you have superpowers) and Styles (what your superpowers are). One of the other changes I'm thinking of making, is to replace the current respect rules with synergy instead: respect is similar to Hx, but it just doesn't feel like that good a fit for a superheroes game, so I'm tending towards something more like strings as in Monsterhearts.
The synergy idea is that you understand more about the other heroes on your team, so you can better support them when they make a move, by spending your synergy with them to give them a bonus to a move you suggest or enable them to make an advanced move. The catch is, deciding how you earn synergy in play: as a late change to the rules, it doesn't really fit in as a consequence of the basic moves, so I was thinking of giving each Origin a move that determines when the other heroes in the team gain synergy with them.
For example, the Accident (the Origin for heroes who gained their powers unintentionally, by chance) might award synergy to another hero who saves a bystander from a fatal accident, whereas the Adept (anyone who has gained their powers through practice and discipline) could award synergy to a hero who saves the day through words rather than deeds... anyway, those are just the rough thoughts.
How would you feel about that? Do you want triggers for awarding synergy that are specific to your playbook? Or a general trigger like 'choose one hero at the end of each session and award 1 synergy to them'? Do you prefer a passive trigger, where you have to wait for someone else to do something? Or an active trigger, where you get to decide when you award synergy?