I'm kind of surprised I've never seen this idea before (though granted I've been known to take lengthy absences from the board).
So, superpowered dwarves. I've done a pair of really simple types just by making attributes defined by caste and giving the bricks buffed strength and toughness and the speedsters buffed agility. I would have given them a better speed, but I'm not sure if I could just give them a stated SPEED token if the rest of the entry doesn't touch it without giving the other castes the standard SPEED, which I was unsure of.
Without further ado, here's what I've done.
[CASTE:FEMALE]
[FEMALE]
[MULTIPLE_LITTER_RARE]
[POP_RATIO:50]
[PHYS_ATT_RANGE:STRENGTH:450:950:1150:1250:1350:1550:2250] +
[PHYS_ATT_RANGE:AGILITY:150:600:800:900:1000:1100:1500] -
[PHYS_ATT_RANGE:TOUGHNESS:450:950:1150:1250:1350:1550:2250] +
[MENT_ATT_RANGE:ANALYTICAL_ABILITY:450:950:1150:1250:1350:1550:2250] +
[MENT_ATT_RANGE:FOCUS:700:1200:1400:1500:1600:1800:2500] ++
[MENT_ATT_RANGE:CREATIVITY:450:950:1150:1250:1350:1550:2250] +
[MENT_ATT_RANGE:PATIENCE:450:950:1150:1250:1350:1550:2250] +
[MENT_ATT_RANGE:MEMORY:450:950:1150:1250:1350:1550:2250] +
[MENT_ATT_RANGE:SPATIAL_SENSE:700:1200:1400:1500:1600:1800:2500] ++
[CASTE:MALE]
[MALE]
[BODY_DETAIL_PLAN:FACIAL_HAIR_TISSUE_LAYERS]
[POP_RATIO:50]
[PHYS_ATT_RANGE:STRENGTH:450:950:1150:1250:1350:1550:2250] +
[PHYS_ATT_RANGE:AGILITY:150:600:800:900:1000:1100:1500] -
[PHYS_ATT_RANGE:TOUGHNESS:450:950:1150:1250:1350:1550:2250] +
[MENT_ATT_RANGE:ANALYTICAL_ABILITY:450:950:1150:1250:1350:1550:2250] +
[MENT_ATT_RANGE:FOCUS:700:1200:1400:1500:1600:1800:2500] ++
[MENT_ATT_RANGE:CREATIVITY:450:950:1150:1250:1350:1550:2250] +
[MENT_ATT_RANGE:PATIENCE:450:950:1150:1250:1350:1550:2250] +
[MENT_ATT_RANGE:MEMORY:450:950:1150:1250:1350:1550:2250] +
[MENT_ATT_RANGE:SPATIAL_SENSE:700:1200:1400:1500:1600:1800:2500] ++
[CASTE:FEMALE_BRICK]
[FEMALE]
[MULTIPLE_LITTER_RARE]
[POP_RATIO:2]
[PHYS_ATT_RANGE:STRENGTH:950:1150:1250:1550:1850:1950:2350] +
[PHYS_ATT_RANGE:AGILITY:150:600:800:900:1000:1100:1500] -
[PHYS_ATT_RANGE:TOUGHNESS:950:1150:1250:1550:1850:1950:2350] +
[MENT_ATT_RANGE:ANALYTICAL_ABILITY:450:950:1150:1250:1350:1550:2250] +
[MENT_ATT_RANGE:FOCUS:700:1200:1400:1500:1600:1800:2500] ++
[MENT_ATT_RANGE:CREATIVITY:450:950:1150:1250:1350:1550:2250] +
[MENT_ATT_RANGE:PATIENCE:450:950:1150:1250:1350:1550:2250] +
[MENT_ATT_RANGE:MEMORY:450:950:1150:1250:1350:1550:2250] +
[MENT_ATT_RANGE:SPATIAL_SENSE:700:1200:1400:1500:1600:1800:2500] ++
[CASTE:MALE_BRICK]
[MALE]
[BODY_DETAIL_PLAN:FACIAL_HAIR_TISSUE_LAYERS]
[POP_RATIO:2]
[PHYS_ATT_RANGE:STRENGTH:950:1150:1250:1550:1850:1950:2350] +
[PHYS_ATT_RANGE:AGILITY:150:600:800:900:1000:1100:1500] -
[PHYS_ATT_RANGE:TOUGHNESS:950:1150:1250:1550:1850:1950:2350]
[MENT_ATT_RANGE:ANALYTICAL_ABILITY:450:950:1150:1250:1350:1550:2250] +
[MENT_ATT_RANGE:FOCUS:700:1200:1400:1500:1600:1800:2500] ++
[MENT_ATT_RANGE:CREATIVITY:450:950:1150:1250:1350:1550:2250] +
[MENT_ATT_RANGE:PATIENCE:450:950:1150:1250:1350:1550:2250] +
[MENT_ATT_RANGE:MEMORY:450:950:1150:1250:1350:1550:2250] +
[MENT_ATT_RANGE:SPATIAL_SENSE:700:1200:1400:1500:1600:1800:2500] ++
[CASTE:FEMALE_SPEEDSTER]
[FEMALE]
[MULTIPLE_LITTER_RARE]
[POP_RATIO:1]
[PHYS_ATT_RANGE:STRENGTH:450:950:1150:1250:1350:1550:2250] +
[PHYS_ATT_RANGE:AGILITY:450:1150:1250:1550:1950:2250:2500]
[PHYS_ATT_RANGE:TOUGHNESS:450:950:1150:1250:1350:1550:2250] +
[MENT_ATT_RANGE:ANALYTICAL_ABILITY:450:950:1150:1250:1350:1550:2250] +
[MENT_ATT_RANGE:FOCUS:700:1200:1400:1500:1600:1800:2500] ++
[MENT_ATT_RANGE:CREATIVITY:450:950:1150:1250:1350:1550:2250] +
[MENT_ATT_RANGE:PATIENCE:450:950:1150:1250:1350:1550:2250] +
[MENT_ATT_RANGE:MEMORY:450:950:1150:1250:1350:1550:2250] +
[MENT_ATT_RANGE:SPATIAL_SENSE:700:1200:1400:1500:1600:1800:2500] ++
[CASTE:MALE_SPEEDSTER]
[MALE]
[BODY_DETAIL_PLAN:FACIAL_HAIR_TISSUE_LAYERS]
[POP_RATIO:1]
[PHYS_ATT_RANGE:STRENGTH:450:950:1150:1250:1350:1550:2250] +
[PHYS_ATT_RANGE:AGILITY:450:1150:1250:1550:1950:2250:2500]
[PHYS_ATT_RANGE:TOUGHNESS:450:950:1150:1250:1350:1550:2250] +
[MENT_ATT_RANGE:ANALYTICAL_ABILITY:450:950:1150:1250:1350:1550:2250] +
[MENT_ATT_RANGE:FOCUS:700:1200:1400:1500:1600:1800:2500] ++
[MENT_ATT_RANGE:CREATIVITY:450:950:1150:1250:1350:1550:2250] +
[MENT_ATT_RANGE:PATIENCE:450:950:1150:1250:1350:1550:2250] +
[MENT_ATT_RANGE:MEMORY:450:950:1150:1250:1350:1550:2250] +
[MENT_ATT_RANGE:SPATIAL_SENSE:700:1200:1400:1500:1600:1800:2500] ++
So yeah, if you spot a glaring flaw, let me know. I haven't tested these yet either, and should probably give them caste names, but this is more a proof of concept than anything. If you want to throw your hat into the ring with some other superpowered castes, I'd be pleased, because then I get credit for spawning a good idea without actually having to do as much hard work.
Oh, and do tell me if this has been done before.