Green Requiem resembles a broken conical flask. It has a orange hat feature and a green main body. Like most Heartless, it has yellow glowing eyes. It has thin legs and feet that do not fit the body shape.
The best way to defeat Green Requiem is equip Aerial Sweep and High Jump and attack it.
 Journal Entries
 Kingdom Hearts
Spellcasting Heartless. They heal themselves and other Heartless with Cure. They are slow-moving, but hover high in the air and absorb most magic attacks.
 Kingdom Hearts: Chain of Memories
A magic-wielding Heartless that drifts through the air. It doesn't attack, but it can cast Cure to heal other Heartless. The Green Requiem is slow, but is healed by basic elemental magic, making it tough to squash.
 Kingdom Hearts Re: Coded
Spell-slinging Heartless that drift in midair, ready to cast Cure magic if one of their cohorts' HP drifts into the red. They can heal themselves, too, and will try to flee if you attack them. Good thing they don't have much HP.