Comments from the Finger: Another favorite from the annals of 3.5 optimization, the Incantrix is Metamagic: the Class. This is a short and sweet class, but it's very hard to say if has significantly underpowered or overpowered, so feedback is appreciated.
You draw your power from an innate connection to the all-pervasive, invisible streams of magic which flow throughout the planes. Your connection is a gift bestowed seemingly at random throughout the generations, and feels like a sixth sense, a silent tugging to places of great power. By tapping into these magical reservoirs, you have learned to channel a surplus of arcane energy into your Metamagic, and can use this to extents normal spellcasters could never hope to achieve.
When you choose this origin at 1st level, you gain 1 Metamagic option of your choice and 1 sorcery point.
Starting at 1st level, your connection to the land’s ley lines grants you a boon to your magic. All known Metamagic costs 1 fewer sorcery points, to a minimum of 1.
At 6th level, you learn to store the land’s magic in your own body, and may use any Metamagic you know without expending sorcery points. After using this ability, you cannot do so again until completing a short or long rest.
Connecting the Streams
At 14th level, you learn to connect others to the stream of magic. As a reaction you may apply any Metamagic you know to any spell cast within 30 feet. This Metamagic costs double the normal number of sorcery points.
By 18th level, you have perfected the use of Metamagic. You gain the ability to use any Metamagic that is not currently on your list of known Metamagics. Using one of these costs double the normal number of sorcery points, and is not reduced by Improved Metamagic.
Changelog: 7/30/15: Free Metamagic only works on metamagic you know.
Most embarrassing spelling error EVER. I misspelled the name of the class! Incantrix of 3.5 is actually Incantatrix, which means I've been misreading it and mispronouncing for years.
8/3/15: Added Early Metamagic.
8/5/15: Early Metamagic now gives 1 sorcery point.
8/10/15: Early Metamagic now named Metamagic Savant
4/5/16: Free Metamagic: wasn't included on webpage.