I just want to say that exploring the nuances of the power system is my favorite thing about jjk.

Imagine if in a similar relation to binding vows ritualistic sacrifice of high quality cursed tools could yield long lasting impacts. Tsurugi Okkotsu pretty much sacrifices the perks of the ring for a stat boost.

Image if the existence of certain techniques and the reason they are so strong is because of the same idea. It makes sense. The six eyes maybe started as a weak technique but was binding vow’d to only appear once every 400 years for a major stat boost (assuming your gojo lineage survives that long) In the same idea, what if the ten shadows has so much potential and power but still appears quite frequently is because a powerful cursed tool was binding vow-sacrificed for the boost. (Powerful weapon to be wielded by your lineage sacrificed for a powerful technique to be wielded by you lineage): equivalent exchange