Uh OH Did I find pups as Spearmaster and think about it too much? You're godt damnt right I did and here are my thoughts you're forcing yourself to read. I imagine scups would be terrified of Spearmaster since he's an abomination of a slugcat, consequences of being an early purposed organism include but aren't limited to...
No mouth! Instead it's the outline of one horrifyingly, like someone opening their mouth under a mask or something tight on their face.
Absolutely skin and bones because of an unnatural way of feeding through the spear straws.
Chest hole with weird tubes showing bones because thanks pebbles :)
Dead eyes that aren't from blindness but odd genomes lacking pigment because thanks Suns :)
No mouth means no tongue to be able to groom themself with; super dirty - and bloody from thanking pebbles in person - and super unruly fur.
Can't even communicate in Scug so can't go 'Oh I'm not mean I swear!' literally can't, unless scugs got some hand motions/body language. Which Spearmaster can't even DO since he's an artificial Scug and never learned the language.
Don't forget to thank Pebbles & Sun for your local Creepypasta Slugcat!