Gloom

is a substance in.

Characteristics
TotK: is very similar to Series:. When TotK: comes into contact with it, it temporarily reduces his maximum hearts. TotK: saps the strength of creatures upon touching them, in some cases leaving them sluggish and unable to move. Being on the TotK: or the TotK: allows TotK: to recover from losing hearts to gloom. However, being in the TotK: prevents gloom damage from healing over time, with the sole exception of areas surrounding a Lightroot.