Can a Shard tell the difference between itself and its current holder?
Tricky question. Depends on the circumstances. The power as a whole, no. Pieces of it, yes. (Ala Spinozism.)
If you are viewing this on github.io, you can see that this site is open source. Please do not try to improve this page. It is auto-generated by a python script. If you have suggestions for improvements, please start a discussion on the github repo or the Discord.