Half-Races

Compatibility Table
*1undefined- if Yuan-ti is a Malison Type 3 it is only compatible with a Yuan-ti of the same type.

* 2 - Only compatible with Yuan-ti Malison Type 3.

Lisune is compatible with any other race that is organic, humanoid and is alive due to their deep connection with fey magic.

Maybe means that it is uncertain if a particular specimen of that specie is compatible with a different particular specimen of a different specie. To determine that simply roll d20 and on 11 or higher the 2 particular individuals are compatible.

Rules for creating half races exists but difficult to make firm rules for such so ask DM.