I use this deck, the key is to play Zombie World as soon as possible. This keeps her from Tribute Summoning Oracle, and the other two. Then Just destroy Necrovalley when it shows up, and try to floodgate Shaman and Visionary. If you have the "Posthumous Army" Skill, I'd replace planet pathfinder, Zombie world, and a twister/typhoon with 3 Field Barriers. I'd say this works about 70%, but maybe I've just been lucky.
You can use the D-Hero Plasma deck for her. Basically the same deck, you just need to suck up one of her 1500 Atk monsters (Assailant or Spear Soldier) or above and she usually can't get over that. The only problem is her field spell. I use Murmur of the Forest to flip one of her monsters face-down and return it to her hand. Otherwise you won't be able to summon Desert Twister (you can use Mega Cyber but that might mess with the Reinforcement skill) and/or need an alternative way to attack her directly/do enough piercing.
actually, whichever you choose LV 10-40 the main rewards are the same but LV 40 is special due to she/ he only drops her/ his signature cards and in LV 10 is more difficult to obtain due to easy to beat. You can check while you tap/ click the LD's reward
Fuk her and Bandit-ass Keith gate LD, farming them is really depends on rng.