Answer:
Glittering points that downward thrust. Sparkling spears that never rust.
A single syllable do I claim black was my most famous name; Fetal to mortals here below thousands have I slain in a single blow.
Blade to blade I always win My foe laid low and even. Yard by yard through thick and thin I'm busiest in season.
I widen my jaws when you poke two fingers in me. I especially like to devour papers
What comes in many different sizes but is always only 1 foot long?
i'm popular for Knuzlocks what am i
What am I?
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