For 20 years, Amy Pascal led Sony Pictures into battle, be it at the box office, in studio bidding wars, or with North Korea, which launched a cyberattack on her studio that forever changed how business is done in Hollywood. And now, after leading the studio to an Oscar win earlier this year for Spider-Man: Into the Spider-Verse, Pascal is walking away from her longtime home at Sony to sign a first-look deal with Universal Pictures. As far as I'm concerned, the addition of Pascal Pictures on the Burbank lot is a coup for Universal, as …