Allow me to introduce you to the Ardent Dilletante (Planar Handbook, page 55). In order to enter the PrC in the first place, you need 8 ranks in one skill and 1 rank in five others. In order to advance to lvl 4 or higher, you need 8 ranks in one Perform skill, 5 in another skill, 1 in any five skills, proficiency with at least two martial weapons, and the ability to cast first-level arcane or divine spells. To become a 7th-level or higher Dilletante, you need 8 ranks in a Perform skill, 5 ranks each in one Strength-based and one Dex-based skill, 1 each in another three skills, proficiency in four martial weapons and one exotic weapon, the ability to cast 1st-level arcane and divine spells, and to have visited at least three different planes.
In order to take the 10th level of this class, you need 8 ranks in a Perform skill, 5 ranks each in one Str-based, one Dex-based, one Con-based, and one Int- or Wis-based skill, proficiency with four martial and one exotic weapons, the ability to cast 1st-level arcane and divine spells, to have visited at least six different planes, and to have died and returned to life or unlife.
Is there such a thing as CAP for stupid prereqs?