I use the following API Scripts from the Roll20 library:

• TokenNameNumber
• GroupInitiative
• GroupCheck
• Flight, which uses splitArgs
• tokenMod

and the following API scripts:

• TurnMarker1.js
• bloodied_and_dead.js (modified)
• ApplyDamage.js

Scripts I've created and use:

• CritCards

APIs that I want to add to my games

• Formation
• Control Player drawings (Dry Erase API)
• Token Mod (Aaron). (with StatusInfo ?)
• Dry erase

Create or find ways:

• Center window on who has initative.
• Track Rage or other status

Images:

• Spell Effect Area

Check Out

• Door Knocker
• GM Notes
• Concentration
• CashMaster for storing Inspiration (Check InspirationTracker)
• Area of Effect

Replace?

• Bloodied with Aura/Tint HealthColors
• Turn Marker with Combat Master 2 or Combat Tracker

Eventually

• Monster only mentions first time bloodied
• Fork Bloodied and Dead