Abjurant Champion
Whats the big deal with Ab Champ? What is it they offer up and above a base wizard that you like?
Abjurant Champion is a great PrC for an arcane caster that needs or wants to keep his or her BAB up. You get 5 levels of perfect BAB, and at 5th level your caster level from there on is equal to your BAB -- a very nice benefit for a paladin/sorcerer combo, or any other perfect bab/sorc or wiz combination.
Beyond that, you gain the ability to cast 3rd level and below abjuration spells as swift actions (as long as they were standard actions to begin with), and the duration of such spells is doubled. There are more than a few useful abjuration spells to have the ability to cast swiftly. I've made the most use of
resist energy,
shield, and
dispel magic, plus I researched an original 3rd-level abjuration spell.
The class also boosts the armor or shield bonus granted by abjuration spells you cast, by an amount equal to your Abjurant Champion level. Currently, there are few spells that fit in this category -- shield, deflect, luminous armor, and greater luminous armor -- but now that I can cast greater luminous armor to give anyone an armor bonus of +13 (and a -4 penalty to hit them in melee combat), and myself a shield bonus of +9.
Lastly, you can change spell slots or spells known into arcane boosts. As a swift action, you gain (for 1 round) an insight bonus equal to the level of the spell/spell slot you exchanged to any of the following things: attack rolls, damage rolls, saving throws, armor class, or gain energy resistance to all 5 energy types equal to [5 x the spell/spell slot spent]. These can be especially handy bonuses when used in the right circumstances, and there are very few ways to gain insight bonuses to things like AC or saving throws.
To top it off, you get d10 hitpoints each level. What can I say? Pretty great PrC for certain characters, my sorcadin included.
Argent Savant has a different focus, primarily bolstering force spells to increase their AC or damage. The two PrCs can work in conjunction, but I can't say whether it's especially useful or not.
