645
What is Superman "Kryptonite"?
(i.redd.it)
General rules:
Exceptions may be made at the discretion of the mods.
As always, there is an XKCD for this (#3123, Cannon)
Title Text: Achilles was a mighty warrior, but his Achilles’ heel was his heel.
It’s actually fanon if fans are developing the lore rather than the original creators.
The original original meaning of canon was "measuring rod" or "straight stick," tho.
Is this why they call big boom sticks cannons?