Amazon Sword Die-off

[Snooks1!]

Simple question: Can amazon swords rebuild/heal their leaves? Or is it best to trim off dead/dying leaves ?

 

[Egg]

They won't heal their leaves. It's common for them to shed if the original leaves were grown exposed to air.
Trim them off, but not all at once. Remove a leaf or two and it should put out one or two new ones in a couple of days. Let those grow out and trim a few more of the old leaves. You don't want to leave it a bare stump, so do it gradually.