Count Cavity is a grinning light purple imp with green eyes and crescent-shaped horns. He has green slitted eyes, a purple nose, and goatee. He wears a red cape fastened around his neck, black gloves with gold rings around his arms, and black pants tucked into purple boots. He carries a gold pitchfork in his right hand. He has an appearance related to Beelzebold.
He can cause his targets to develop a cavity, and harm their teeth a lot.
Count Cavity can be freed from the present Crank-a-kai with a Blue coin, Five-Star Coin, Special Coin or Excitement Coin, and he can be found in the Infinite Tunnel past 10000m. Additionally, he appears randomly after brushing your teeth, where he can drop a Holy Exporb, accompanied by Beezebolds. During the fight, he cannot be befriended.
As of the Oni Evolution Update, he can also be freed from the Happy-Go-Lucky Crank-a-kai.
Once again, Count Cavity can be found in the Crank-a-kai in Springdale. He can be freed with a Blue Coin a Five-Star Coin, or a Special Coin. There's also a chance that he can be befriended at Cluphinx Raised Paw 4 in the Blasters T mode.
Count Cavity appears near the end of The High-Fright Zone, when it is revealed he was the cause of Nate's cavity and the subsequent trip to the dentist complete with all the terrors he got from a dentist inspirited by Blazion way back in EP006. Upon realizing this, Nate smacks Whisper and Count Cavity with his paper fan because Nate thinks Count Cavity is a jerk and Whisper said that there was no Yo-kai who could cause cavities.