From publisher blurb:
Do you want to play a Warlock in your next 5e game but aren't interested in the run-of-the-mill Patrons from the handbook? Or, maybe you ARE interested, but just not in the generic "Fiend" or "Great Old One" because you need specifics. Maybe you want something unique and provocative but don't have the time to create one; besides, then you would have to crunch the numbers to make sure it fits in line with the published content, so your GM doesn't have one of their "you-broke-the-game" meltdowns. Look no further. The Chanting Druid has what you are looking for. Each release from this line will have a new (and more importantly: unique) patron to drop into your game, complete with rules and information for the GM and player through all levels. There are even a few story hooks that can lead off to an adventure all its own. Happy gaming.
What you get = this product features the patron: Svanus the Windspeaker - the physical embodiment of the forest's own spirit. A Fey creature in every respect, your service to them promises to be anything but boring...
This supplement is compatible with the 5th Edition of "the world's greatest roleplaying game" and can easily be fit into any other similar system. It will carry your Warlock through level 20 with complete rules and character options, along with potential story hooks for your Gamemaster's consideration.
This particular product would be an excellent asset to introduce the Fey-Realm or to springboard into an adventure among the courts of the Fey.