Toxoplasmosis

Toxoplasmosis gives your cat a Rat Familiar at the start of each battle and makes your basic attack charm Rat enemies. The Rat Familiar is a small allied unit that fights alongside you, providing extra actions and damage output. Charming Rat enemies with your basic attack turns them from foes into temporary allies, creating a rat-army strategy where you gradually convert the enemy's forces.

Toxoplasmosis is heritable and can pass from parent to kitten through breeding. It can also be acquired through events or applied with a Disorder Syringe from the Organ Grinder. The disorder references the real-world parasite Toxoplasma gondii, which famously makes rodents lose their fear of cats. In Mewgenics, this translates to your cat having a special relationship with rats, gaining a rat companion and the ability to recruit enemy rats.

Strategically, Toxoplasmosis is most valuable in areas with many Rat enemies, where the charm effect can convert multiple foes into allies. The free Rat Familiar at battle start is a nice bonus regardless of enemy composition, providing an extra body that can absorb hits and deal chip damage. In rat-heavy zones, this disorder is extremely powerful. In areas with no rats, it is merely decent thanks to the familiar. It pairs well with summon-focused builds that benefit from having additional units on the field.