Mercy Gets Play of the Game with an Accidental Nano Boost

This Mercy made the most of an accidental Nano Boost from their Ana and earned this Play of the Game by using Valkyrie. The clip begins with Mercy hiding in a corner damage boosting the team, but as soon as they realize they are Nano Boosted, they fly directly into the enemy team and use their own ult, Valkyrie to get some kills.
The clip was posted on the Overwatch subreddit on Friday by u/marTeeOh and it received a lot of agreement in the comments about how truly terrifying it was. The best comment on Reddit was by u/tjxr who said, "Scariest thing ever is seeing a valking, nanoed Mercy pull up to you." It's ironic how usually Mercy is the least feared hero until the tables get turned and she is ulting with a Nano Boost. Then even a small 200 health support hero is frightening.
The Play of the Game only shows three kills, but it's clear to see that Mercy is quickly approaching a fourth. It's an obvious choice for Play of the Game because it is such an unexpected, but clearly effective use of two support ultimates to get a decent kill streak.