Yeah that Sylvan Library to the bottom play was iffy. Could have been a mistake, and I don't want to make an accusation cause lord knows I've done stupid shit in a high pressure moment, but it allowed the Armageddon to be found the turn afterwards. That almost played out very badly.
It actually doesn't make sense as Robert has been seeing the same cards on top of their library the whole time and then suddenly saw a fresh 3. Even if it was a mistake at first, they should have noticed that the same cards have floated on top is now completely different. On top of all that, Robert fetches on the next turn and sees the two Cursed Totem's that were on top of their library at the very bottom. Seemed very deliberate.