So, in a recent session, characters were heading up a rise to get yo the necromancer top the hills. They knew there were undead sll over the place and scouting had spotted a couple particular badbones.That's creative, I've heard of systems that do similar things, typically with fate pointconcepts were the players get to influence the world during the game.
On the way up, the druid use Pass without Trace twice at key points of vulnerability.
In both cases, I flipped a face card club, described one of the bigger threats either heading thrir way or crossing the path behind them and just keeping going because of the PWoT.
Each turn of card got an "oh crap" as they saw BIG FIGHT and then a hoot of "Hell yeah" as they saw concrete PWOT payoff. The druid was ecstatic - not just hearing "they walked by" but seeing me "burn" a card.
Later on, they saw a number of the strays heading west - out of their way. They realized the dead were going after bug bears the scouts had spotted and that this really did them a bit of assist at a key point - enough for advantage not auto-success. I turned over the 7 hearts for "mid-rank help" and so they made it to the top with a bit more resources than they could have had.
Not for everyone but works for us. Might be part of why they bother to even show up. Hard to say.