Add buff via trigger (w/out dummy)

[Bribe]

I noticed that you can only select a handful of buffs from the "Add X Expiration Timer" to a unit in GUI, but you can do whatever you want with that in JASS.

I am wondering if there is some kind of JASS code that lets you attach a non-expiring buff to a unit?

 

[Darkt3mpl3r]

Just use a value '0' for this and the buff will last indefinitely ( however it will not be seen )

For buffs ( abilities ) simply apply the buff ability to your unit and it will last indefinitely