{Lvl 10, Full Caster} Boon of Leovwit

Prerequisite: requires being a full caster of 10th level of higher
You gain a spell slot thats one higher than your highest level spell slot. Additionally, you Learn/Know one spell of that level to cast using that slot. If you gain a higher level slot, recalculate accordingly. You cannot gain spell slots above 9th level with this boon, and instead gain and learn one additional 9th or 8th level slot