Mega-Ether

Mega-Ether (メガエーテル) is an item found in Kingdom Hearts and Kingdom Hearts II that restores MP, but in slightly different ways. In the first game, it restores 3 MP for each party member, while in the second game it restores the entire party's MP completely. In both games, it can be equipped for use in battle.

In Kingdom Hearts, they can be found in scattered chests and Trinities located in several Worlds.

In Kingdom Hearts II, they can be found in chests.

In Kingdom Hearts 358/2 Days, Mega-Ether is in form of an item panel which restores 1 cast of each magic to you and your comrades in the same map.

Kingdom Hearts

 * 3 Blaze Gem
 * 3 Frost Gem
 * 3 Thunder Gem
 * 5 Bright Shard
 * 1 Bright Crystal

Kingdom Hearts II

 * 3 Mythril Shard
 * 1 Power Shard
 * 1 Blazing Shard
 * 1 Lucid Shard
 * 1 Serenity Stone

Kingdom Hearts 358/2 Days
The Mega-Ether can be synthesized for 1800 munny once Roxas is promoted to Novice rank.
 * 2 Hi-Ether

Kingdom Hearts Birth by Sleep

 * Mega-Ether: Blue Sea Salt (45%), Yellow Mustard (25%/45%)