Poison

Poison is a technique that appears in Kingdom Hearts Birth by Sleep. When inflicted with poison, the health bar will gradually deplete for a short duration of time.

Mechanics
In Kingdom Hearts Birth by Sleep, Poison is an Basic Magic Command that takes up one slot in the Command Deck, has a maximum level of 4, has a normal reload time of 10 seconds, and fills the Command Gauge by 8%.

Kingdom Hearts Birth by Sleep

 * Terra, Ventus, and Aqua can purchase Poison from the Command Shop for 100 munny once one world is cleared or the command has already been obtained elsewhere.
 * Ventus can find Poison in a chest at the Cottage Clearing.

Drops

 * Poison: Spiderchest (40%)

Melded commands
Poison is used to meld the following commands:
 * Bio Barrage
 * Poison Block
 * Poison Edge
 * Blackout