András at first posted the next solution to the Q&A Can a multiclassed warlock expend a Spellcasting spell slot of the non-warlock class to utilize the Eldritch Smite invocation?, but I planned to insert it right here with the sake of completeness: When you have a stage in a whole https://dungeons-and-dragons-pala66667.blogolize.com/the-smart-trick-of-dungeons-and-dragons-paladin-that-nobody-is-discussing-57045878