It is nice it has Flash, which makes it easier for you to find that timing, but I think there are going to be too many situations where the Masquerade either does nothing, or is too slow at doing something
Furthermore, fighting doesnt win the game on its own
Looking at many of the old creatures on this list, it's hard for new players to know what they are missing, because in the context of today's creatures they generally aren't missing all that much
Morgul-Knife (Shadowspear) Exxaxl: Shadowspear was one of the cards I first noticed becoming expensive because of Commander
With enough creatures and a massive Orc Army, it can be a finisher move
Regal Bunnicorn What could be dismissed as the kind of casual card that new players love but dies to removal, the Regal Bunnicorn is surprisingly powerful, and featured as a two-of in Simon Nielsens Worlds Top 8 Azorius Soldiers deck, despite being nothing like a soldier