Suggestion. If you're aiming at 3 valor tokens / quest, just reward most of them for the quest completion. Give 2 for quest completion, push the 1 to saga rewards (for non-saga quests, tough, but even with reduced rate, they'd still give some). Maybe limit this to 1/day/quest to prevent the rusted-blades issue.
Then you'd have to pick whether you want to put them to chests where they are tradeable, or if you just need to implement a new way of rewarding them. I suggest just rewarding them when quest completes, similar to getting fragments of twelve from kills.