The Charybdis Megid, or simply Charybdis, is a special Megid with multiple human hosts.

Hosts:
-Mami Imoto

-Remi Imoto

Forms:
-Default

-Hercules: Is the Charybdis Megid's upgraded form after partially absorbing Desast and the Eternal Phoenix Wonder Ride Book.

Arsenal:
-Zarutsdra: With two hosts, Charybdis wields a large hatchet-like blade for combat. Even after its hosts are separated from Charybdis, it still has access to this weapon.

Abilities:
-Consumption: Charybdis can transform its torso into a giant mouth to consume people or inorganic matter:

•Vacuum Creation: With two hosts, Charybdis can draw its enemy closer by consuming the air between them using a mouth created from its arm or torso.

-Absorbed Abilities (1): By consuming any number of other Megid, Charybdis can use use their abilities. It is able to use multiple abilities at the same time:

•Propulsion Fists: Gained from consuming the Golem Megid, Charybdis can launch the Golem Megid's hands from its torso mouth and control them remotely:

•Invisibility: Gained from consuming the Ahiru Megid, Charybdis has the ability to become invisible.

•Regeneration: Gained from consuming the Hanzaki Megid, Charybdis can grow back severed body parts. Charybdis can also regenerate its own Alter Ride Book upon its destruction. Charybdis is able to completely regenerate its body if destroyed.

•Piranha Swarm: Gained from consuming the Piranha Megid, Charybdis can summon a swarm of piranhas, which jump out of a nearby body of water and fly through the air.

•Enhanced Smell: Gained from partially consuming Desast, Charybdis has an increased sense of smell that allows him to detect Kamen Rider Sabela while she is in the form of smoke.

-Enhanced Strength: Charybdis Hercules possesses more strength in its new right arm, allowing it to knock down Kamen Riders with a single punch:

-Seismic Punch: With a single punch into the ground from the enhanced right arm, Charybdis Hercules can create powerful seismic tremors.

-Meteor Summoning: Charybdis Hercules can summon a meteor storm that attacks his enemies.

-Absorbed Abilities (2): Due to partially consuming Desast/Kamen Rider Falchion, Charybdis is able to use their abilities:

•Phoenix Wings: Gained from Kamen Rider Falchion, Charybdis can sprout orange phoenix wings from its back.

•Calamity Strike-like Attack: Gained from Desast, Charybdis can perform a version of his signature attack in which is spins its body like a drill and rams into the enemy while surrounded by purple energy and orange fire.

Equipments:
-Charybdis Alter Ride Book