Burmese folk religion
These exorcists, or "ahletan hsaya", are said to possess powers that can fend away or challenge these evil demons. These exorcists were often seen as very holy, because they had to be to combat troublesome spirits. They attempt exorcisms by giving the nat offerings. As an interesting overlap with Buddhism, exorcisms can be performed by holding the Buddha up to the possessed person, in an effort to have the Nat flee. If the exorcist cannot banish this spirit alone, they often ask for the assistance of the nat-kadaw. Sorcerers, or "weikzas" also harnessed the power of these nats through many complex rituals, to gain their own supernatural powers.
Gabriele Amorth
Edward Peters, a professor of canon law, finds Amorth's claim to have personally performed 30000 exorcisms over 90 years "astounding". Even accepting Amorth's claim that only 94 of his 30000 exorcisms represented full-blown possession, that would have required roughly one case a month to be thoroughly examined and processed over nine years with hardly a break. Amorth believes that a person may be possessed by more than one demon at once, sometimes numbering in the thousands, which is what accounts for the high number of reputed demons exorcised.