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.

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%)