Solarian crystal damage

[Evan van de Steeg]

A lot of crystals have no energy damage so does that mean a frost fusion half or all cold damage on such a crystal?

[John Mangrum]

If the solarian weapon crystal doesn't add energy damage, then a crystal with a frost fusion would inflict half cold damage, half whatever kinetic damage the solar weapon normally deals. If the solarian weapon crystal does add energy damage, then you replace one of the two damage types it inflicts with cold damage.