so, if you master the datenseki you'd get insect-themed sorcery powers? is that why Magatsumi got the "Shinuchi" title?
which means forging the datenseki into sword was akin to gambling. most likely you'd bust, the datenseki would explode, and you'd be dead. but if you hit jackpot, you might get a superpowered sword. if the power is insect-themed then congratz, that's the best possible prize!