Sidekicks of Ravnica is a great supplement for any group employing the new D&D 5e sidekick rules! Full disclosure: I know nothing about the Ravnica setting, and that did not stop me from enjoying these unique sidekicks! If I were a fan of Ravnica, I would probably like this collection even more.
Each one has a complete level one statblock and a concise, solid backstory, as well as personality traits, ideals, bonds, and flaws. More than just personalities, they have unique weaponry, spells, and some special abilities! I particularly like Fblthp the Expert homonculus and Veren Flutter-Blade the Expert faerie, because they are non-humanoid creatures. Since the official Essentials Kit sample sidekicks were released, most players seem to assume that sidekicks must be humanoid! The layout and formatting are professional, and the art pieces have a consistent and vibrant style. I highly recommend this supplement!
[5 of 5 Stars!]