Heighten Spell (Feat)

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Heighten Spell

You can cast spells as if they were a higher level.

Benefit: A heightened spell has a higher spell level than normal (up to a maximum of 9th level). Unlike other metamagic feats, Heighten Spell actually increases the effective level of the spell that it modifies. All effects dependent on spell level (such as saving throw DCs and ability to penetrate a lesser globe of invulnerability) are calculated according to the heightened level.

Level Increase: The heightened spell is as difficult to prepare and cast as a spell of its effective level. While Heighten Spell does not natively require a higher spell slot to use, it allows a higher level spell slot to be used, and when this is done, the spell's DC and all other effects are calculated as if it was of that higher level.

Example: A Burning Hands spell is usually a level 1 spell, such that the saving throw DC is 10 + 1(spell level) + Stat Mod. With Heighten Spell, you may memorize a Burning Hands spell in a level 6 spell slot, making the save DC 10 +6(spell level) + Stat mod.

Even more powerfully, you may stack Heighten Spell on other Metamagic feats. Perfect Spell, for example, adds +6 spell levels, so a Perfected Burning Hands requires a level 7 slot to cast. If the spellcaster also had Heighten Spell, he could memorize a Heightened Perfected Burning Hands in a level 7 spell slot, and gain all benefits of Perfect Spell AND calculate the save DC as 10 +7(spell level) + stat Mod. Indeed, he could even memorize a Heightened, Perfected Burning Hands using an eighth level spell slot and raise the Save DC even higher, if he so desired. The only limit is, the highest level spell slot that may be used is a ninth level spell slot.