Fey Creatures of the world

Throughout your years of training and study you have gained first and secondhand experience with a number of creatures. You are intimately familiar with all manner of beasts and have some limited experience with those of the ancestral fey. And of course many that would naturally traverse the forests. (can check the monster manual for any beasts, far too lengthy to list here)
When it comes to fey there are the Seelie and the Unseelie, the plainly put good and evil respectively. They are opposing sides of the conflict within the feywild and each side may have creatures crossing over into the material plane.
Hags are beings of despair. There are many types of hags but they all share the goal of bringing further sorrow to mortals as they revel in the anguish they cause. Being physically and magically capable they still prefer to use trickery, to fool and intimidate others and are usually intrigued and excited at the prospect of a deal. Usually seeing to it they have the upper hand in any negotiation.
Dryads are the soul of a beautiful and ancient oak tree given form. Usually appearing as a beautiful human or elvish woman, she celebrates the forest around her with joy. as long as her tree remains healthy so does she. A partciularly attractive human may capture her attention and she will attempt to lure them in and charm them, keeping them for herself. They know a number of druidic magics and can move through one tree and emerge from another. Should they be taken too far from their oak, they begin to feel incredibly ill and must return to their boundary line (Terel) or they will perish. There are some tainted by the unseelie presence within their forest, they follow the will of the forest and when it is turned entirely dark, so are they...
Npmhs exist as beings of pure beauty, a visage of perfection to all creatures that look upon them. So much so that to see one at all would render a mortal completely blind, taken even further, were a mortal to view a nymph entirely nude they would die from the overload to the brain and soul. These forest spirits usually represent the natural beauty of the area they are in and are the lifeforce of it. A truly beautiful glade will only stay with water so pure and with its creatures and plants in harmony should the nymph remain perfectly clean and pure herself, so she does not allow herself to be touched.
Satyrs are entirely hedonistic creatures, seeking out revelry in all its forms. As they chase down the strongest spices, the most powerful drink and the most beautiful of creatures, they leave no thought to the consequences, whether their own or others. often leaving others left stumbling to provide explanation for their actions the night before. They specifically engage with dryads or nymphs if possible, the dryads natural and carefree beauty along with the joy of sex is highly desired. They are however content simply to look among the pure essence of beauty that is a nymph as they may also please them with a song or story in turn.
Blink dogs are faithful fey canine companions. intelligent creatures but unable to communicate they make for excellent tracking animals as they possess keen hearing and smell. Able to blink in and out of existence, covering small distances they are experts at capturing prey or subsequently making a getaway if things don't go to plan. noble and good creatures they have but one enemy that they cannot control themselves around, which is the twisted displacer beast.
Quicklings, the nasty tricksters of the unseelie forests. They move at a blindingly fast speed, a curse placed upon them by the queen of air and darkness, the dread ruler of the gloaming court. They move almost faster than the eye can see, should your laces be tied together, a letter disappear from your hands or a thought to be stolen item appears within your pack, many believe this to be the artful malice of the quicklings as they delight in the discord they sew among the slow movers. Their curse means they move quickly but so do their lives, with most living no more than 15 years, extraordinarily short for those even not of fey blood.