>>3780696 (OP)Let me artificially answer this for you.
The darts are made of "magical force," a type of energy in D&D that is pure arcane power, not tied to physical elements like fire or lightning. Force damage is described as raw magical energy. The "darts" are a stylized representation of that focused arcane energy, shaped by the caster's will.
In short; use your imagination, faggot.