Question - what does this command do in a downshit?

[ego_death]

I found a downshit that looked like this....

downshit0=/if (!${Me.Buff[Steadfast Stance Rk. II].ID} && !${Me.CombatState.Equal[COMBAT]} && ${Me.PctMana}>80 && ${Cast.Ready[Steadfast Stance Rk. II]} && ${Spell[Steadfast Stance Rk. II].Stacks} && !${Me.Moving}) /casting "Steadfast Stance Rk. II" gem11 -invis

what is the "-invis" for at the end of that command line? what does it do?

 

[Maskoi]

MQ2Cast variable
-invis - With this parameter, it will not cast if you are invisible.

 

[ego_death]

TY maskoi