Light speed tokens on unactivated characters

That's a good question.   If they took the shards off of you, what would you gain?  Not much.  So, my hunch is that you'd keep the shards, but it's just a hunch.  However, if you used an LST on a 3 star character you wouldn't gain anything back from it  hmmmm.

Guarantee you it works like the Hyperdrive Bundle. It'll take him to whatever star level the token states subtracting the difference from your shards.