Eldritch Trancension

You make a grand offering to your patron in exchange for additional eldritch power. When you cast this, you must make a DC 12 wisdom saving throw. On a failed save, the spell fails, you suffer 2 levels of exhaustion, and your strength is reduced to 3 if it isn't 3 already for 2d6+1 days. On a successful save, you permanently gain an additional two pact slots that you can use. This spell can be used any number of times.