Companions

Companions are earned by completing character favors, then gifting Ambrosia. Upgrades add summon uses per escape attempt.

Companion	Source	Effect	Uses	Restriction	Unlock
Battie	Megaera	Megaera strikes for 2500 damage in a line near the closest foe.	1 / 2 / 3 / 4 / 5 uses	Cannot be used against the Fury Sisters until later Hades permission.	Earn Megaera's favor, then give her Ambrosia.
Mort	Thanatos	Thanatos deals 3500 damage in a large area in front of you after a delay.	1 / 2 / 3 / 4 / 5 uses	Cannot be used in Thanatos encounters until later Hades permission.	Earn Thanatos' favor, then give him Ambrosia.
Rib	Skelly	Skelly creates a 250-Life decoy that draws enemy attacks until destroyed.	1 / 2 / 3 / 4 / 5 uses	Cannot be used against Charon.	Earn Skelly's favor, then give him Ambrosia.
Shady	Sisyphus	Bouldy deals 1000 area damage and drops healing, Darkness, and Obols.	1 / 2 / 3 / 4 / 5 uses	No special encounter restriction.	Earn Sisyphus' favor, then give him Ambrosia.
Fidi	Dusa	Dusa fights for 30 seconds, firing petrifying shots that deal 70 damage.	1 / 2 / 3 / 4 / 5 uses	Unavailable while Dusa is temporarily away from the House.	Earn Dusa's favor, then give her Ambrosia.
Antos	Achilles	Achilles and Patroclus strike two foes for 1500 damage each.	1 / 2 / 3 / 4 / 5 uses	No special encounter restriction before the Hades permission gate.	Earn Achilles' favor, then give him Ambrosia.