what powers would a thief of light have, like vriska? what about a thief of time?

A Thief of Time, I talked about them already, comparing them to Diavolo from Jojo (Although his powers could be seen as a Prince of Time too) with possible Time Skipping powers. A Thief of Light though, Vriska makes a really good example, literally taking Luck from others for her Dice Rolls to be better, stealing the Spotlight to seem like the most important character, gathering Information on how things work and the battle ahead…