Dice has only appeared once in DMFA, though he is referenced again later. Merlitz described him as "Master swordsman and hero".[1]
He is part of Merlitz's old adventuring team that consisted of: Nightmyste, Pegasus, Skirmish, Genesis4 ("Gen"), and Dice
Dice was apparently responsible for Merlitz being kicked out of his old adventuring party over an incident regarding a human[2] so that, per Gen, "he could have his enchantress girlfriend join the party" but, per Gen, "Two weeks later they both quit anyways."[3]
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 [4], so it is unlikely to see the old adventuring party again soon. They will likely remain bit-characters.