Sequencer

This module implements a basic pipeline that can be used for managing the flow of a set of functions, effects, sounds, and macros. It implements a fluid and very readable interface so that even common users can read exactly what the Sequencer will do.

https://foundryvtt.com/packages/sequencer

This is the core to smooth animations and workflows that have to coordinate all of those really cool special effects. It is a required component for a few of my other module selections but important enough IMHO that I wanted to call it out. I left the default configuration as is.