My first: Root template
From Divinity Engine Wiki
Description
Root templates are the building blocks of Divinity: Original Sin 2. Every entity in the game, from candle holders to monsters, and even the player character itself, is an instance of a root template.
Objects in levels are most commonly local templates. Local templates are instances of root templates that have been placed in a level.
When local templates are made global, they become global templates. Global templates exist across levels in a project.
To summarize:
- Root templates define a placeable entity
- Local templates are instances of root templates placed in a level
- Global templates are local templates that exist across multiple levels (such as origin characters)