Circle of Stars
The Druids of the Circle of Stars believe that their forms should be as numerous as the stars and not restricted to be merely beasts. Druids in this Circle are much more connected to eachother than other Circles. Stories of adventures while being dragons or monsters are shared constantly. The Druids pride themselves in their control of Wild Shape that, while not as powerful as the Circle of Moon, is much more versatile and fun (in their opinion).
Many Forms
When you choose this circle at level 2, you are granted the ability to become something other than a beast when you use your Wild Shape feature.
You gain the ability to turn into one other creature type of your choice, choosing between Fey, Humanoid, and Elemental at 2nd level.
At 6th level, you may choose an additional creature type, with Plant, Monstrosity, and Fiend becoming additional options.
At 10th level, you may choose an additional creature type, with Undead and Dragon becoming additional options.
At 14th level, you may choose two additional creature types.
You must follow the Wild Shape rules when using Many Forms, most notably that you can't cast spells, even if your new form can. Also, remember that you do not gain any equipment the new form may typically have.
Your DM may give you some or all the creatures of your new creature type that you may Wild Shap into, especially if you have not seen any creature of that type.
Empowered Shapes
At 6th level, you can use your Wild Shape feature to transform into a creature of CR 1 or less (you ignore the Max. CR column of the Beast Shapes table, but must abide by the other limitations there.) Starting at level 10, you can transform into a creature with a challenge rating as high as your druid level divided by 5, rounded down.
Knowledge of Many
At 10th level, you gain advantage on any rolls to recall information about any creature whose type you may transform into.
In additional, you learn two languages of your choice that are spoken by a creature that you can transform into.
Ultimate Form
At 14th level, you gain the ability to transform into powerful forms of creature types you know of. Choose one of your known creature types. You can expend two uses of Wild Shape at the same time to transform into a creature of that type that is up to 2 CR above what you may usually transform into.
