Hello Garrett

Thanks for posting in the community! Unfortunately Lucidchart does not offer a Ternary chart template or shape library but you may be able to create a chart in this style using shapes from other shape libraries! To learn about using additional shapes please take a look at this article from the Lucidchart Help Center.

If you are still unable to create the type of diagram you'd like to with any of the shapes currently included in Lucidchart or with Custom Shapes would you mind submitting a request for Ternary chart functions in our Feature Request form? This form is shared with our development team for their consideration as we work to improve Lucidchart. Please let me know if you have any further questions!