Magic Meter

The Magic Meter measures Link's current level of Magic Power. It first appeared in the second Legend of Zelda game, The Adventure of Link. It is also used in A Link to the Past, Ocarina of Time, Majora's Mask, and The Wind Waker.

Uses
The Meter appears as a green bar which decreases when Magic Power is expended, and can be refilled using Magic Jars. Spells such as the ones in The Adventure of Link, the Spell Medallions in A Link to the Past, and Nayru's Love and Din's Fire in Ocarina of Time, and Fire, Ice and Light Arrows in various games (though there are many more examples) use magic power. The Magic Meter is also used to power various items, for example the Lantern, the Fire and Ice Rod, and the Magic Cape in A Link to the Past.

Magic Meter Upgrades
In most games which use the Magic Meter, it is possible at some point during the game to increase its capacity (usually doubled).
 * In The Adventure of Link by gaining levels, the magic bar can become more resilient to the amount of magic drained by using a spell. Also, there are four Magic Containers that each add an additional bar to the Magic Meter when obtained.
 * In A Link to the Past by using Magic Powder on a shrine next to the blacksmith's house, a strange bat-like creature appears and "curses" Link, resulting in a doubled Magic Meter. The one-half means that magic is drained at one-half the normal rate.
 * In Ocarina of Time, the Great Fairy of Wisdom in the Death Mountain Crater grants Link a Magic Meter upgrade.
 * In Majora's Mask, the upgrade can be obtained by retrieving all of the green colored Stray Fairies in Snowhead Temple.
 * In The Wind Waker, by defeating a Big Octo near Two-Eye Reef, a violet colored Great Fairy will grant Link a Magic Meter upgrade.

Trivia
Its absence from Twilight Princess has been strongly noted by many, especially given that a green bar appears on beta screens for the game, including screenshots on the back of the game box. It is the only 3D Zelda game without one. It would have been replenished by Green Chu Jelly (see external links).