Xytych the Planesdrifting Aether Minder is the ONLY monster you'll need when after a certain Total Party Kill of your one DnD group you dread DMing every other Tuesday, when you could be streaming Quibi or Netflix 'n' chill.
But seriously, if you are looking for a truly out of this world and one of a kind creature to throw at your oft arrogant, high-level PC party, without changing up your whole campaign, why not try Xytych? He's a great piece of art, science, cryptozoology, and DnD witchcraftery sure to excite and terrify even the most stalwart and venerable of veteran DnD players. It might even make you, a serious and obviously discerning DM, the talk of the dungeon.
He's Legendary. He's predatory. He's likely to make someone cry and another rage quit. He's the cryptozoological zeppelin of magical assissination. The extraplanar powerhouse from another dimension - Xytych the Planesdrifting Aether Minder!
- from the publisher's blurb