Because the steel is sharp, and the laws are cloudy.
Because the pits are dark, and torches gutter.
Because there is no need for explanation, or justification
Because you can have a purple goblin sucker-punch a dragon, a noble minotaur strumming a lute made of 
stolen moonbeams, and a half-elven, half-DARK ELVEN maiden break your heart from the back of a crimson unicorn.
Literally break your heart – she cast a spell that crystallized it into Soul Ice, and her gauntlets are enchanted by a fire daemon.
Because, because, because….
[This was a comment I made on a thread asking to justify genre fiction. Comments, rebuttals, and counterspells welcome.]
spell-sword.com 
fantasy is the domain of the unrestrained. we makes our own rules and do what we want.
Hear-hear, sir.