Grounding

"Grounding is a psychic ability that blocks the usage of certain powers"

User(s)
Grounding is a power wholly unique to Roland

Roland
After Roland has read someone, he gains the ability to turn off any power he finds "unrealistic" through skin contact.

Arc 1
Roland uses this ability to disable Perio's Matter Manipulation, causing the fire he'd created to burn through his arm and preventing him from regenerating.