Im making a stone warder archetype sorcerer, and one of the bloodlines the archetype limits you to is the orc bloodline, which im probably going to choose for the arcana. Stone warder also prohibits you from using any spells with elemental descriptors though, and it seems half of the bloodline spells for the orc bloodline have the fire descriptor, so im looking for ways around that.
What are the ways i can remove or replace descriptors from spells?
Best i can find is dipping admixture wizard...
Blood of the Earth
Stone warders must have a bloodline with strong ties to earth and rock. A stone warder must select the deep earth, draconic (copper dragon only), elemental (earth only), orc, or shaitan bloodline.
Power of Stone (Su)
A stone warder draws power from natural rock, and gains a +1 bonus to her caster level when in hills, mountains, or underground terrain. This bonus increases to +2 at 5th level, and by an additional 1 every 5 sorcerer levels thereafter. However, this strong elemental tie prevents a stone warder from casting spells that have the air, cold, electricity, fire, or water descriptor.
Rune of Warding (Sp)
As a standard action, a stone warder can create a warding rune in any adjacent square. The stone warder selects a sorcerer spell known that is at least 1 level lower than the highest-level spell she can cast, and casts it as part of creating the rune of warding. The spell must have a casting time of 1 standard action or less, and it must target one or more creatures. Rather than have its normal effect, the spell is stored in the rune. The first creature to enter the square triggers the rune of warding, and becomes the target of the selected spell. Regardless of the number of targets the spell can normally affect, it affects only the creature that triggers the rune.
The rune is invisible and lasts a number of rounds equal to the stone warder’s level or until discharged. If placed on a solid rock or stone surface, it instead lasts 1 minute per sorcerer level the stone warder has or until discharged. The stone warder cannot create a rune of warding in a square occupied by an existing rune of warding or another creature.
The rune counts as a spell of the same level as the spell stored within it for the purposes of dispelling. It is considered a magic trap and can be discovered with a successful Perception check (DC = 25 + the level of the stored spell) and disarmed with a successful Disable Device check (DC = 25 + the level of the stored spell). The stone warder can use this ability a number of times per day equal to 3 + her Charisma modifier.
This ability replaces Eschew Materials, the bloodline spell gained at 3rd level, and the bloodline feat gained at 7th level.
Versatile Evocation (Su): When you cast an evocation spell that does acid, cold, electricity, or fire damage, you may change the damage dealt to one of the other four energy types. This changes the descriptor of the spell to match the new energy type. Any non-damaging effects remain unchanged unless the new energy type invalidates them (an ice storm that deals fire damage might still provide a penalty on Perception checks due to smoke, but it would not create difficult terrain). Such effects are subject to GM discretion. You can use this ability a number of times per day equal to 3 + your Intelligence modifier.
Admixture still changes the descriptor though. You could switch everything to Acid with Admixture if you wanted, but I dunno if this is what you're looking to do or not. Acid is a good Element though, there aren't a whole lot of creatures that are resistant to Acid. But, if/when you do come across Acid Resistant/Immune creatures, you're going to be at a significant disadvantage.
(╯°□°）╯ removes offending text
Elemental spell doesn't mention changing the descriptor, but the descriptors should match what the spell actually is IMO - a elemental (acid) fireball which is doing no fire damage shouldn't have the fire descriptor. Ask your GM of course.