I have a few questions I would like to clarify a bit more and this post objective is a bit for a reference and continuation in case someone needs to look into this for guidance. Also, I would like to say, this was a bit inspired from the MST.TV video regarding this card.
Lets start with the following cases:
Case 1)
There is a monster my opponent controls, (lets say, a Cyberdark Dragon) and I have both rollback and infinite Impermanence in grave.
Question 1: Can I attempt to activate transaction rollback to copy the effect of infinite imperm?
Question 2: If the question 1 is yes, how does it really fully act? What is each sequences or order of things?
Case 2)
I have both Transaction Rollback and Epidemic Virus or Extinction on schedule in grave, can I copy their effects? (it came to me that, it seems some judges are not so sure about this one, some say it can fully resolve, like in the OCG.
Then there is another case you just apply the first part to see and send that declared type of card from your opponent hand but everything else doesn't apply.
And finally some suggest, you can't copy their effects at all.
This is all I still need confirmation with. I would like to give my thanks to those that are kind enough to help me understand this better.