So for complete broken nonsense including some house ruling of the Psionics UA I have a fun build going:
Human UA Ranger 3 / Immortal 5 / Assassin 3 / Paladin 9
13, 13, 13, 12, 12, 12 base array ending with a 14, 14, 14, 13, 13, 13 {I gave the immortal a 13 int multiclass requirement because...