Here is what I would do.
If I were Allegri, I would talk up what Juve have done so far, and speak very little of Inter.
If I were Marotta, I would speak of how Inter has run afoul of FFP and it would take several years for them to even think about competing with us again.
If I were the players, I would bring up every past indiscretions of the Internet players, and how more than a few of them regret not coming here when they had the chance.
And then on match day, as the bus pulls up, and the fans are getting more riled up, the doors open, and a bunch of kids wearing Juve kits and troll masks come running out screaming "Andiamo a Berlino!!!"