Originally posted by Zathabar:

Just to be clear please.
Is this speculation or post some testing on the PTB?

When I read the patch notes I was hoping we could add any amount of Tropheys to specify whats a legit set of targets for a Ballista.
So is it really just one? Also does it get returned if you break and move the Ballista or..?

if its really just one I have to wonder why they bothered?

the trophys is returned if you change it or move the ballista. its not lost. that would have been stupid. some trophys also target a bunch of foes.