I see that you already have a Dao system tied to Origins, which is great. To expand on that for post-Infinity content, I suggest adding elemental Daos (Earth, Lightning, Fire, Water, etc.) as a sub-layer beneath each Origin's Dao
As for the World Law system you mentioned, I'm not entirely sure what you mean by that, but here's my take on how it could work: to gain deeper control over a specific elemental Dao, the player should have to physically visit certain areas on the map that help the element he use
For example, in the Mortal Realm, you'd find basic elemental zones like Water and Fire. In the Divine Realm, you'd unlock more advanced ones like Lightning or Ice. And maybe in higher realms, you'd find higher laws like Time or Space
This way, Dao mastery becomes tied to exploration and progression through the realms, which fits perfectly with post-Infinity content. Enemies in each realm would also use the corresponding elemental Daos against the player, making combat feel more immersive
As for Yin-Yang(additional idea) , I think it could work as a final integration mechanic—once the player masters two opposing elements (like Fire and Water), they unlock a Yin-Yang state that transcends normal elemental laws