An artificer's infusions never meet spell prerequisites for developing magic items. For example, an artificer have to nevertheless make use of the Use Magic To answer your issue on Dreadnaught vs. Fatesinger, I'm supplementing the build build with Dreadnaught simply because for one particular - I'm utilizing the Shadowdancer epic https://riverexmew.full-design.com/5-easy-facts-about-tiefling-dnd-5e-described-70944245