Wildcat is Tyler Wine, a YouTube gamer who rose to fame in the mid-2010s alongside the VanossGaming crew, posting funny-moments compilations full of loud, exaggerated reactions. 'That is incredible!' is one of his classic mid-game exclamations, ripped from a commentary track and trimmed down to a single second by soundboard uploaders. It caught on because it fits almost any jaw-dropping moment, from clutch plays to real-life luck, and short reaction clips like this stay popular since they work as instant hype in edits, streams and memes.