As two actions, you choose a point within 20 meters and cause psychic energy to explode there. Each creature in a sphere centered on that point must make a Will saving throw. If the animal’s Intelligence is −4 or less, the spell has no effect on it.
On a failure, it takes 4d8 psychic damage and has disadvantage on attack rolls and ability checks as well as saving throws to maintain concentration until the end of its next turn.
On a critical failure, it takes twice as much damage.
On a success, it takes half as much damage.
On a critical success, it takes no damage.
You can increase the damage by 1d8 for each additional mana expended.
You can expend 1 additional mana to cast the spell as a a reaction, which you use when you are hit by an attack. It is centered on you, but does not affect you or creatures you designate.