Sanaki build

Apparently her Triangle Adept + Swordbreaker is just an easy solution people go for. Virtually unkillable against Greens, oneshots all of them and onerounds swordies to boot. Other people go for Fury, probably since her Dmg can still be solid, even against Blues.

The Refine seems to suggest she's built as a magic-soaking unit, as well one that can ocassionally oneshot Reds, given the right tools (Death Blow, I guess?).

You can go with the standart build, which makes her into an awesome green check and lets her deal with most reds as well(Since her Res is really high, red mages won't do that much damage to her, however she is dead to dragons)
W: Cybeline, Assist: Draw Back(Any assist, whichever you like), A: Triangle Adapt, B: Swordbreaker, C: Hone Atk, S: Spur Atk(I use it, cause with her refined tome and S Support, she buffs my Cherche by 13 Atk, which is nuts)

If you can afford it, I would try going for a H!Nowi and inheriting her Atk-Res-Bond to Sanaki, then add swordbreaker and pair her with a flying unit, possibly the new Robin but also Gerome or Cherche or Michalis work. The Bond bonuses and refine allow her to reach atk levels to oneshot 80% of the game. The preferably green flier takes care of the remaining 20%

I run Cymbeline (+Eff), Atk/Res Bond 3 and QR 3 on a +Res -Def nature, paired with Gerome,who has Guidance and Drive Res 3. She hits 52 Res with that set up, and I believe, if on a defensive tile, can tank even Quickened Pulse Reinhardt.

I don't think she really wants Triangle Adept, since she can't tank phys. damage anyways and her matchups against magic users is already pretty stellar. If you can't use the Bond skill, I'd reccommend Fury 3 Desperation/Brash Assault. That would be a pretty scary setup.

I run my Sanaki (+Spd/-Def) with her refined Tome and Atk/Res Bond and dual Def/Res ploys, paired with refined Hinoka with Atk Tactic. With the ally support and additional effects of Bonds and weapons, she's able to reach a reasonable Speed and godly amounts of Atk and Res. Hinoka also benefits greatly from having an infantry ally next to her who can handle bulky Greens.

Raven, repo/draw back, Iceberg/Glacies/Aoe/Moonbow/Luna (whatever you prefer, i love aoe), TA3, Swordbreaker (if she is not -def, she can tank hit of any swordlord with less than 57 atk, unbuffed), then some smoke as C-skill, or drive skill, or rly whatever, threaten res/atk also may be good). +DD3 seal, so you can tank Lyn better.

My Sanaki (tho blessed by summoner support), often cleans 3/4 arena by herself (most colourless, red and green is slaughtered)