Wizardry: Tome and Blood Spells
Complete Arcane is widely considered to be Tome and Blood (a 3.0 book) updated to 3.5, but people who claim that haven't read the books or have only read the game mechanical parts and did that poorly as well. Aside from lots of different non-mechanical information, Tome and Blood has some spells and prestige classes that didn't make it into the 3.5 edition. I have converted all the Complete Arcane spells that I wanted, but some of these "missing" ones are pretty cool, so let's convert them.
Choke should be a simple spell, right? Just use Affliction with Choking, +100%, right? If you read the rules carefully, you will see that rules for suffocation (when you, for example, run out of air when diving), rules for choking and strangling (p. B370), Choke Hold technique (p. MA69), and the afflicted choking condition (p. B428) all use different rules. And then there's Fatigue Attack with Suffocation. The Choking affliction is something of a save-or-die where you cannot do anything. Why can you resist and act semi-normally when you're being choked normally then? Here, I decided to go a different way and stat this spell up as a limited form of TK. It may seem like the most convoluted option, but in reality it's done for the sake of streamlining the rules. Now, you get a proper choking attempt that can be resisted, and the spell is quite cheap too. So, if you see a chicken, cast Choke on it.
Feign Death is another interesting one. On the surface, it looks similar to Hibernate, but the devil is in the details. Feign Death is a buff, so it can only be used on willing creatures. The duration is limited, but there's another important difference - the subject still can hear and smell the surroundings, and the subject is the one who decides when he wakes up. This greatly expands the spell's utility.
Hide Life is a very cheap spell in terms of character points, but the casting cost is very high. The effects, however, turn you into something of a lich, making you unable to die, unless the body part where your life is hidden is found and destroyed.
Indifference is a spell that drains emotions. The subject becomes immune to fear and influence, but becomes socially inept.
Negative Energy Burst and Negative Energy Ray are simple attack spells that deal toxic damage. If I recall things correctly, these spells were later reprinted in Magic of Faerun, but I am too lazy to check the book right now.