The chance of that happening is slim to none. Only things stopping Sylvan are Hazy, CA, and and disconnection. Sylvan is so user friendly that it can be played by cavemen and they will be guaranteed to achieve KoG within hours.
Not really, I played against Sylvan in legend and had 90% win rate against them. They're easy to counter with our current cardpool, people just too lazy copy paste deck from internet so when that deck doesn't include 🔥 to counter certain deck, they brag and cry instead of finding the solution. Please be smart.