An artificer's infusions don't fulfill spell prerequisites for making magic items. As an example, an artificer have to continue to utilize the Use Magic To answer your issue on Dreadnaught vs. Fatesinger, I'm supplementing the build build with Dreadnaught mainly because for one - I'm using the Shadowdancer epic strike. https://trentonjcume.buyoutblog.com/28183154/5-tips-about-black-dragonborn-dnd-you-can-use-today