Onna-Musha are the worst unit Jean d'Arc can encounter; they eviscerate her.
Jeanne d'Arc at level three, using her ability, does so well at sniping down low-health Mounted Samurai.
You have to go ranged form against Shinobi. If you go melee form you just die because the Shinobi hit for 23 damage. You have 2 armor, you take 21 per strike, so you die in 11 shots. Shinobi have really quick attack speed and movement speed to match you. The teleport is the biggest deal: a high level Japanese player will Shinobi behind you and then you walk around them, getting multiple hits in. Ranged form allows you to kite and snipe the Shinobi. Shinobi can also beat Knights by microing back injured ones and stacking.
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