Disclaimer: I own nothing of Sigma 6, which is owned by Hasbro. Only the plot and the OC are mine.
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Long Range was in the driver's cab of the RHINO, enjoying some downtime with a book when he heard a strange noise.
Looking around, he saw nothing but knew that could be deceptive. After a few minutes of silence, he returned to his book, only to hear the sound again.
Raising his head again in confusion, he once more looked around but still saw nothing. This time though, he put his book aside and got out of his chair to better examine the cab.
Waiting to hear the sound again, he was rewarded by hearing it coming from a back corner of the cab, under the leg space of one of the stations. Turning on the mini-flashlight on his gauntlet, Long Range crouched down and looked for the source of the sound.
What he found was a tiny ball of blue fluff, not much bigger than a golf ball, rolling around the floor of the leg space. When the light shone on it, it seemingly turned to face him and let out that sound again, a sad little 'meep'.
The sniper groaned and quickly looked around the cab for more. That little fluff ball was a kind of creature called a dice, though most of the magical community knew them by their nickname of 'Tribble'.
Attracted to loose magic, dice would and could multiply rapidly and were a terror to get rid of.
After searching the rest of the cab thoroughly, Long Range was satisfied that there were no other dice to be found. But that was odd. Dice were pack animals and were generally found in groups of four or more, not alone by themselves.
Going back to where he'd found the creature, Long Range reached out to pick it up. It didn't run from him, but it did tremble in the palm of his hand as he held it up for inspection. Feeling sorry for it, he gently petted it with two fingers while looking it over.
It did seem smaller than normal for a dice, so perhaps this one was a runt that had gotten separated from its pack. Moving to sit back in his seat, Long Range used his free hand to open a dash panel and pulled out an old good luck charm paper. He had a new one already so losing this one wouldn't hurt.
Offering the paper to the dice, it squeaked happily and somehow tugged it out of his hand. The faded ink on the paper lightened further and soon vanished as the dice absorbed the magic from the charm, purring happily the whole time.
Smiling, Long Range set his new friend down on the arm rest and picked his book back up. It'd be safe to keep just one, as dice needed a partner to multiply. He'd have think of a name for it later, though Fuzzball was first and foremost in his mind.