Are you looking for this card?
https://www.tcdb.com/ViewCard.cfm/sid/1382/cid/244547/2000-Fleer-Mystique-137-Rob-Bell
The shared card is an autographed card, but I don't see the AU card in the Fresh Ink insert set. That one shows in BBP, br not here. Neither is the shared card with Bottenfield.
Another edit: Sorry I just re-read your post. Are you referring that you have an AU card of only Bell that isn't listed here? If so, per chance, does it look like this one
https://www.tcdb.com/ViewCard.cfm/sid/11999/cid/1975306/2000-Fleer-Focus---Fresh-Ink-NNO-Rob-Bell-
Focus and Mystique both had Fresh Ink insert set with very smilar (identical?) backs.
When night comes creeping in,
Dark restless shades arise.
Prepare to crawl and run.
The Black is here tonight.