Bio

Bio (バイオ) is an ability that appears in Kingdom Hearts Chain of Memories. It causes enemies' HP to gradually drop.

Mechcanics
Bio is an enemy card ability that costs 30 CP to add to the deck and lasts for one reload.

Kingdom Hearts Chain of Memories

 * The Neoshadow enemy card has Bio as its effect.
 * The Black Fungus enemy card can randomly activate Bio.
 * The Darkside enemy card can mimic an enemy's Bio.

Origin
Bio is a recurring Black Magic spell in the Final Fantasy series. It usually deals Poison-type damage and poisons enemies.