I am building a world emphasising on balance and chaos (where pretty much two sides of one coin), kind of like Earthsea.

As a consequence, the magic in D&D doesn't work quite well with it. (powerful magic exists in my world, but unwise usage of powerful magic usually comes with deadly consequence.)

Also I want the bad consequence lasts longer, kind of like sanity in COC.

What is a feasible system for my world? Or any feasible way to modify any system to make it work? Or do I have to create one myself (I hope not)?

  • \$\begingroup\$ We can't facilitate game recommendation questions here—they're off topic—but we're open to talking about it in Role-playing Games Chat. \$\endgroup\$ – doppelgreener Jul 4 at 20:27