If you are a warlock using invisibility pot for mythic+, you can use Burning Rush while using the invis pot IF you use it before the potion.

Invis macro with Draenic Invisibility Potion:

 

#showtooltip Draenic Invisibility Potion
/cast Burning Rush
/use Draenic Invisibility Potion

Invis macro with Skaggldrynk

 

#showtooltip Skaggldrynk
/cast Burning Rush
/use Skaggldrynk

The icon will show the invis pot instead of Burning Rush, to prevent accidents.