d4, the Tetrahedron (Pyramid) - "Caltrops" describes you pretty well:
a useful part of a larger set, hard to use alone, and with only a few applications to which you are well-suited. Plus it sucks to step on you - you are the only standard die which lands with a vertex pointing upwards! Despite all this, you remain highly sought after for your minimal elegance and tight range. You were very popular in the ancient world in the form of knucklebones and square rolling sticks.
What type of Polyhedral Die are you?
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