Its not just that the art of Charizard was exclusive, its that there was a finite version of these tests made in the first place
Jokes apart, I think it's very strong and can be easily summoned by Courier+Archer+Sorcerer (Normal summon Courier, return it to your hand to summon Sorcerer, then you can summon both Courier and Archer and Synchro his monster
Most Flavorful - The most fun to play card in a storytelling context will be deemed Most Flavorful
Though Kaiba couldn't initially understand the value of a three-turn delay in Duel Monsters , Swords or Revealing Light gave Yugi valuable time to stall, and from there, obliterate his opponent
First editions or shadowless with stamps
Assault Formation The strategic breakthrough, where what once was defense becomes a crushing advance, bending the very rules of war