Only sample traps are RAW. Other custom traps are basically custom items and therefore DM fiat. Players that want to make traps don't get much out of them. Tomb-tainted can get free out of combat healing for 1k rather than Dread Necro 1. "Boon traps are part of the dungeon and are immobile ... the magic that was infused into the walls or floor" so they are the twenty times more expensive version for those who are good aligned. There isn't much they can do besides cure and heal. Even the haste, animal growth, stoneskin or mass bear's endurance isn't that great.
Items that derive their statistics off of traps can only do so with stated statistics rather than imaginary possibilities. Sorry spell clocks. There's no getting around that 2 round wait.
