All Diseases (Heroes) come equipped with 3 abilities, Homeostasis (An out of combat heal health & mana (Also works on buildings)), Burrow Teleport at Level 10 (Teleport anywhere on discovered map), and Attribute Bonus (Increase all attributes by 3 each level)
Hookworm (Parasitic Roundworm) - A simple strength melee Hero that can permanently gain life through absorb health, cast a long lasting heal, and a powerful chain lightning.
Lyssavirus (Rabies) - An agility melee Hero, can summon units that cast strong buff/debuffs but require a lot of mana, can cast a long lasting heal and an area slow to all nearby units.
Malignant Tumor (Cancer) - An intelligent melee Hero that focuses on stealing units, weakening enemies, and spawning tumors for unit production.
Orthoebolavirus Zairense (Ebola) - A strength melee Hero capable of converting enemy units, disabling strong enemies, and using a powerful chain lightning.
Bubonic Plague (Black Death) - A ranged intelligence Hero that can permanently gain life through absorb health, cast a long duration area stun, and set an area to take percent damage over time.
Covid 19 (Coronavirus) - A ranged agility hero that focuses on gathering gold from enemy bases to build your own small base to train units and get upgrades. Can also revive units and increase all nearby friendly units ranged damage.
Hyperevolutionary-Virus (Infestation) - A ranged agility hero. It can summon weak zerg units that evolve through combat getting stronger. Can summon a companion super unit to help as well. And finally, it can use a long lasting heal for any friendly units.
Mucormycosis (Black Fungus) - A long range strength hero with the ability to tower creep, instant kill lesser units, and create a ever strengthening disease cloud. Also can create the enormous Mycelium Mass when enough gold is accumulated at a tower.
Naegleria Fowleri (Brain-Eating Amoeba) - A simple ranged strength hero that can permanently gain life through absorb health, gain passive armor & self thorns, and activate cyst to increase life, armor, damage & spell immunity for a duration.
Plague of Undeath (Blight) - A ranged intelligence hero will summon abominations from corpses, skeletons from hero attacks and use their own units to heal their own health/mana.
Viral Rhinitis (The Cold) - A ranged intelligence hero that converts enemies into towers that can cast powerful ice spells however, they need a lot of mana to function. Can give allies mana or make enemies slow with Freeze. And finally can cast a mana shield on self.