>>90746610https://anydice.com/program/3a1e4It's a different probability distribution. 12d6 is more powerful because you're more likely to roll a higher number. You can determine this because the average value of 1d6 is 3.5 (it's (1+2+3+4+5+6)/6), therefore the average of 12d6 is 3.5*12=42, while the average of 1d12 is 6.5, so the average of 6d12 is 6*6.5 = 39.
t. warhammer autist