Was Flash Knight going to be a good option for a deck based around Pendulum Summoning high-level Normal Monsters? While the range is a bit limited, topping out at Level 6 as previously mentioned, there are plenty of strong Normal Monsters that fall in between those levels. In fact, the Knight did see some competitive play, including some Regional Top 8 Draco Performapals decks like this one.
For only a mere rare, the Flash Knight actually proved himself to be a fairly useful monster. He was useful enough just as a scale, and having 1800 ATK isn't too shabby, either! As one of the first ever Pendulum monsters, the Knight held his own for awhile before being outclassed by flashier, badder Pendulum monsters. But let us never forget the exploits of this brave Level 4 Knight!