Mistwalker (Immortal Anami)

Immortal Anami build.

Since Anami can constantly dash, that combined with Elusive gives almost constant invisibility, then invisibility healing comes in. If you somehow still run out of dashes, you have Retrieving Blast, which will replenish your dashes. Windburn gives amazing damage simply as you are moving and scales off of speed. So you can just run around the arenas invisible while everything dies around you. For bosses, you just dash into them repeatedly for easy 5 stacks of burn and frostbite, while you are near invincible. The only issue I've found is for flying bosses, where dashing into them is harder.

I didn't really dive deep into the breed grind or the higher difficulty grind. This is the best anami I was able to breed. Same with the catalyzers, I used the potent versions of those I didn't find the strong ones of. So this can be maxed out even further. I didn't even die at Abyss 40, just got bored so escaped. Although this is in Adventurer difficulty, I'm pretty sure it will be very much viable on higher difficulties.