Here's my last new curse (so far) for the Oracle class.
Insane: You were touched by the gods and now are completely mad. You could constantly babble while alone or maybe write in a script that no one else (including you) can understand. You take a –4 penalty on all Wisdom-based skill checks. You’re immune to confusion effects. At 5th level, you can once per day, as a full-round action, treat your next Knowledge check as a natural 20, even if untrained. At 10th level, you add commune to your list of spells known and can, once per day, ignore its material component. At 15th level, once per day, when targeted by a confusion effect, you can choose to automatically suffer its effect and, as an immediate action, inflict the same upon a number of targets equal to your class level (maximum 20 targets). The target saves against the confusion effect using either the original DC or 10 + ½ your class level + your Cha modifier (whichever is greater).