Kind regards
Is it possible to use an item frame that is indestructible in the survial and invisible?
Yeah
/ give @p item_frame {EntityTag: {Invulnerable: 1b, Invisible: 1b}} 1
Easy.
You can create commands on https://mcstacker.net
Does not work
Which Mc version do you have?
1.12.2
There we have the mistake. Suffering is only possible in 1.16 and more