Starlight is Mythical
Unrivalled in its capacity to embrace items energetically, Starlight is of a paragon standard when it comes to activation dust and is used by elite-level practitioners.
With its superior energetic transfer, Starlight can be used on items to 'hyper-charge' them, potentially doubling their former energetic output.
The one drawback of Starlight is its hefty price tag which is to be expected with such a powerful substance.
This fact keeps all but the most successful arcanists at bay in the acquisition of this superlative activation dust.