Elemental Trial Katanas

I'd argue the evasion katana would increase your overall DOT more than an attack sekka. I can say for a fact that you're not going to be floored on evasion against mobs that matter - whether or not this leads to more DOT than an attack sekka I can't say.

Eva katana can be completed very fast other than the diremite part. Just head out to uly on windsday - shouldn't take you more than a couple of game days. There's also a small enclave in aydeewa where you might have xp'd, not many of them with long repops but it works.

MDB katana is easy but it heavily depends on weather. You can do a majority of it in caedarva - if you see the next three days are rainy you're good to go.

MAB katanas are toys, maybe offhanding one while brewing is a good move but other than that I just can't see myself spamjutsuing something after level 50.

I do 90% of my stuff alone or with one other friend as a Kannagi nin with a 50% potency whm. I started out using kamome in the offhand but have since switched to full timing the evasion katana. Yeah I'm a little lazy, but not having to worry about shadow casting as often is nice. I used the MDB during the dhorme khimaira part of my apademak trial, that's about it.