"Name: Helmet Of The Black Knight
Lore:
It seems like there is no longer light within my path.

As my mouth cracks into the shape of a crescent moon,
my eyes glint like that of a beast's hungering for blood.

As my chivalry falters,
my soul sinks deep into the black mud,
with my limbs reduced into deadly blades.

Oh my comrade, you shall not be able to see my face,
as this helmet right here is only a remnant of my past knighthood.

Effect: If equipped to Lancelot, Increases own NP damage by 30%, 30% Chance to reduce enemy's critical attack chance for 3 turns when attacking.

Min/Max ATK: 100/100
Min/Max HP: 100/100
Stars: 4★
Cost: 9
Max Level: 80
Craft Essence ID:232

Source: https://fategrandorder.fandom.com/wiki/Helmet_of_the_Black_Knight"