Comment by Janice on I was more overpowered than the hero, so I hid my power! - Chapter 7

@Janice

Look like he already found his loophole: It only counts if they know his full strength.

Meaning he could specialize in magic and as long as they don't know he could punch the moon he will be fine.

@Sofa_King_Cold Yup. Healing powers are usually saints, clerics, priests, certain magic users, and paladin types. All but the paladin tend to be squishy in other ways, and paladins often have to be high level to do a really good heal. It's very rare for a high-level healer to equal a high-level hero/demonkin/etc. like the goddess cited. 

It's also rare for demons to have healing abilities period. Aside from the occasional dark elf being misclassed as a demon, the only one I can think of is the demon king from "I am the Strongest Boss". (Recommended. If the demon king didn't want to wipe out humanity, the audience would be cheering him all the way.)

@Janice think of it like this: He is not showing them any power so it does not count to the penalty as he is just using a unique version of healing magic(cause it is instant), while if he were to punch the guy that would actively be showing his power meaning that his haer would explode.

@Sun-JinWoo   ohhhh okay I get it now thanns