Lost spell from an old 4e grimoire to kill a beast, two versions reworked for 5th edition Ars Magica. I dislike how many of the core Ars spells don’t have allowances for larger creatures which means they are no use against horses and other big foes.
The Incap version at PeAn35 seems a better choice. I also modified the spell as written from size +1 animals to allow affecting large animals too, up to size +4.
Incantation of the Beast’s Ruin
Perdo Animal 35, R: Voice, D: Momentary, T: Individual
This spells inflicts an Incapacitating wound to an animal, up to size +4.
(Base 20, +2 Voice, +1 size)
Incantation of the Pack’s Ruin
Perdo Animal 40, R: Voice, D: Momentary, T: Group
This spells inflicts an Incapacitating wound to a group of animals, up to size +1. Designed with wolf packs in mind, this spell will kill a group of 10x size +1 animals.
(Base 20, +2 Voice, +2 Group)
Incantation of the Beast’s Demise
Perdo Animal 45, R: Voice, D: Momentary, T: Individual
This spells kill an animal of up to size +4 instantly.
(Base 30, +2 Voice, +1 size)
These spells are part of the free new spells compendium for Ars Magica.