As a spellcaster's knowledge of magic grows, he or she can learn to cast spells in ways slightly different from how the spells were originally designed or learned. For example, a spellcaster can learn to cast a spell without certain components, cast a spell for greater effect, or even cast a spell with nothing but a moment's thought. Altering the casting and effect of a spell is accomplished using metamagic feats.
Spells improved with metamagic feats use up higher-level spell slots, as noted in Table: Metamagic Spell Level Adjustments.
Metamagic feats cannot be used for all spells. See the specific feat descriptions for the spells that a particular feat can't modify.
Table: Metamagic Spell Level Adjustments
Empower Spell
Enlarge Spell
Eschew Materials
Extend Spell
Heighten Spell
Special (see text)
Nonlethal Spell
Reach Spell
Sacred Spell
Shadowbane Spell
Silent Spell
Still Spell
Preparing and Casting Metamagic Spells
Some advanced classes must prepare their spells in advance. During preparation, members of these classes decide which spells to prepare with metamagic feats, remembering that any spell improved by a metamagic feat takes up a higher-level spell slot than normal.
Mystics cast spells at will from a limited list, as opposed to preparing them in advance. They can decide when they cast their spells whether to use metamagic feats to improve them.
As with other spellcasters, the improved spell uses up a higher-level spell slot. Because the Mystic has not prepared the spell in a metamagic form in advance, he must do so on the spot. The Mystic, therefore, must take more time to cast a metamagic spell (one improved by a metamagic feat) than a regular spell. If its normal casting time is an attack action, casting a metamagic spell is a full-round action for the Mystic. For spells with a longer casting time, it takes an extra full-round action to cast the spell.
Acolytes spontaneously casting cure or inflict spells can cast metamagic versions of them. Casting an attack action metamagic spell spontaneously is a full-round action, and spells with longer casting times take an extra full-round action to cast.
Incantations: An incantation cannot be the subject of a metamagic feat.
Effects of Metamagic Feats
In all ways, a metamagic spell operates at its original spell level even though it is prepared and cast as a higher-level spell. Saving throw modifications are not changed (unless stated otherwise in the feat description). The modifications made by these feats only apply to spells cast directly by the feat user. A spellcaster can't use a metamagic feat to alter a spell cast from a wand, scroll, or other device.
Maximize Spell and Quicken Spell Abilities
Some advanced classes have special class abilities that work like metamagic feats. For example, the Maximize Spell ability of the Mage and the Quicken Spell ability of the Techno Mage function as metamagic feats with regard to how they interact with other metamagic feats.
Metamagic Magic Items
A character with the Brew Potion, Scribe Scroll, or Craft Wand class ability can store a metamagic spell in a potion, scroll, or wand, respectively. Level limits for potions and wands apply to the spell's higher metamagic level. A character doesn't need the metamagic feat to activate an item storing a metamagic spell.
Multiple Metamagic Feats on a Spell
A spellcaster can use multiple metamagic feats on a single spell. Changes to its level are cumulative.
Counterspelling Metamagic Spells
A spell enhanced by a metamagic feat does not affect its vulnerability to counterspelling or its ability to counterspell another spell.

Psionic Feats

Some spell-related feats are equally applicable to psionics. The following psionic feats function as the named spell-related feats. Treat references to spells as powers within these descriptions, and references to caster level as manifester level.
Power Penetration As Spell Penetration
Power Focus As Spell Focus
Great Power Penetration As Greater Spell Penetration
Greater Power Focus As Greater Spell Focus
Feats that require the choice of a school of spells would for its psionic equivalent require choosing an attribute (ability score), to the same overall effect. In addition, metapsionic feats function in much the same way as metamagic feats. However, they require the additional expenditure of power points (as opposed to increased spell levels) and as a result are presented here.

Metapsionic Feats

Metapsionic feats are to psionics as metamagic feats are to spells.

Metapsionic feats allow a psionic character to enhance the manifestation of a regular power. Using a metapsionic feat doesn't take any longer but does increase the total power point cost to manifest the power.
A psionic character can use multiple metapsionic feats on a power, and the extra power point cost is cumulative, but a power altered by metapsionic feats can never cost more power points than the manifester's level minus one (minimum 1).
With the proper item creation feat, you can store a power enhanced by a metapsionic feat in an item, such as a psionic tattoo.
Find topic in: Arcana
Eschew Materials [Metamagic]Heighten Spell [Metamagic]Incantations
MysticNew Bonus Feats For Advanced ClassesTechno Mage
3.5 Arcana Arcana Feats 3.5 Metamagic mrd 3.5 Metamagic mrd MRD Metamagic Occupations 3.5 msrd Metamagic rpg MRD mrd rpg Feats modern d20 mrd rpg mrd d20 Starting Starting Metamagic mrd roleplaying wizards 3.5 modern MRD d20 mrd Metamagic MRD Arcana d20 Feats