I took the darksaber. I gave it to Bo-Katan. It was prophecied to unite Mandalore against its greatest foes. And they wipe us out in what a couple years?
I designed the Duchess to remotely target beskar. Even if we destroyed it, what if someone else reinvented it. A former classmate or an intructor?
I thought I could help Mandalore and the Rebellion and, considering Kylo Ren, neither really succeeded.