This is a follow-up question to How do I handle a gameplay error when I have an equivalent play available in a tournament?. The answer to that question indicates that even though the play is equivalent, I still can't rewind that play + get a warning.
Now suppose I have two Dryad Greenseeker in play, one of which is freshly cast. I activate one of them. Opponent calls a judge. He says I tapped the Dryad Greenseeker that is summoning sick, and therefore I was breaking the rules and should get a warning. He says he knows which Dryad Greenseeker is summoning sick because he paid attention when I cast it, while I don't remember whether I put the new Dryad on the left or on the right.
- Do I get a warning for game rule violation?
- Does my opponent get a warning for unsporting conduct?
- Do I get to activate my Dryad Greenseeker after all?
If the answer to #3 is "yes", I'm also curious why there's a difference compared to the situation in the linked question.