Dice has only appeared once in DMFA, though he is referenced again later. Merlitz described him as "Master swordsman and hero".
Dice was apparently responsible for Merlitz being kicked out of his old adventuring party over an incident regarding a human so that, per Gen, "he could have his enchantress girlfriend join the party" but, per Gen, "Two weeks later they both quit anyways."
Dice and the others of Merlitz's old adventuring party are based on real person's characters, which is something Amber has been trying to avoid , so it is unlikely to see the old adventuring party again soon. They will likely remain bit-characters.