[@The World] Oh cool! So it's just an anti-decapitation/headshot sort of delio? If someone tries to #slapthosecheeks the armor is sacrificed instead of the head? I'd probably reword it to something like this:

[quote]
SPECIAL: The "armor" on her cheeks can stop physical critical attacks from hitting her head. This special can activate twice per operation.
[/quote]

Operation being the official term for each "encounter."