Warlock is given the power too. You wouldn't be able to bargain your spellslots back of it didn't come from your patron.
Also, if it was knowledge based, you'd use your intelligence, not your charisma.
Warlock is given the power too. You wouldn't be able to bargain your spellslots back of it didn't come from your patron.
Also, if it was knowledge based, you'd use your intelligence, not your charisma.