Would Ordinarily stop him from doing this. This ability circumvents the traditional rule that a character may well not take ten on a Use Magic Unit check. Artificer Knowledge: An artificer can make a Specific artificer expertise Test with a reward equal to his artificer level + his Int modifier https://connervofaq.blogdigy.com/the-fact-about-wood-elf-dnd-5e-that-no-one-is-suggesting-42013053