Vigilance and Reach make the card a problematic blocker at all times, First Strike, Menace, and Trample prevent opponents from chump blocking it, and Lifelink can snatch victory out of aggro opponents' grasp
Ragavan, Nimble Pilferer is one of the more valuable cards from the bonus sheet (and it's already been preemptively banned from MTG Arena thanks to its power)
Most of the decks are from TappedOut and Archidekt
While there are guidelines to keep in mind when deck building (no Game Changers in Exhibition or Core, no mass land denial through Upgraded, etc.), the bracket system is emphatically not just "put your deck into a calculator, get assigned a rank, and be ready to play." I deeply appreciate the tools that websites like Moxfield and Archidekt have put together to give you an overall estimate, and they've done some fantastic iteration to help emphasize intent as wellbut I want to stress that any estimate is just an estimate
Thats because when you tap it, you can untap an attacking Creature and prevent all damage they would do, and that would be done to them
A hexproof card that has caused a large range of emotions is Gladecover Scout