Explaining the Class Affinity system to non-Fate fans
There are seven types of people: swords, archery, spearmen, wizards, cars, ninjas, and angry boys.
Archery can be literally anything. Guns? Slingshots? Swords used as projectiles? Those all count as arrows. Cannons also count as arrows. Sometimes dolphins count as arrows. Anything can be an arrow, really, if you put your mind to it.
Then there are swords. Swords do not count as true swords unless they can shoot deadly laser beams. If they cannot shoot deadly laser beams they are just arrows.
Spears are pretty straightforward: one long stick with a pointy end for stabbing. Spears are capable of surpassing any weapon that isn’t a laser-sword.
Swords beat spears, spears beat arrows, and arrows beat swords.
Then you have your wizards. Wizards can be everything from actual spellcasters to English majors. But somehow they all know magic. Wizards are especially vulnerable to getting run over by cars and therefore must be especially careful when crossoing the street.
“Cars,” of course, covers not just motorized vehicles, but horses, dragons, ships, the sun, and even people. Uber drivers and horse girls of all kinds are known for their ability to run over unsuspecting wizards but must be weary of their natural predators, ninjas.
Ninjas are far too stealthy to be hit by cars but are responsible for many a carjacking. Of course, one need not be a practitioner of ninjitsu to qualify as a ninja - serial killers, spies, samurai, and strippers all count as ninjas and they are all especially at risk of being killed by wizards (and English majors).
Last but not least is your angry boys. “Angry” is something of an overgeneralization as many are in fact not angry. They are however, batshit insane in varying degrees (except for the ones who were already insane but became Angry Boys at which point their insanity was cancelled out). They can easily beat up all six of the above-mentioned classes but will die if you so much as sneeze on them.
