Credit for the original Kool-Aid man by Glutton: https://paizo.com/threads/rzs2rlv2?OH-YEAH-The-KoolAid-man-cometh
While he focused the build on breaking every possible barrier, my 2.0 version will focus on increasing the Stunning Irruption DC, which is 10+BAB.
Increase BAB, that's impossible! Some might think at first. But is it?
There is this wonderful spell Emblem of Greed, which sets your BAB to your CL.
CN Male Half-Orc Cleric of Gorum
Alternate Racial Trait: Gatecrasher +2 strength checks
Domainsb Destruction (Rage), Strength
Traits: Muscle of the Society, +2 strength checks versus doors. Gifted Adept (Emblem of Greed)
1 Power Attack
2
3 Smash
4
5 Stunning Irruption
6
7 Spell Focus: Transmutation
8
9 Varisian Tattoo
10
11 Spell Specialization: Emblem of Greed
12 Rage Power: Strength Surge
13 Extend Spell
14
15 Furious Spell
16 Rage Power: Superstition
17 Quicken Spell
18
19 Spell Perfection
With Karma Prayer Beads we end up with a caster level of 32 and a Stunning Irruption DC of 42
Edit: Can't actually take Power Attack at level 1, but you can switch around the order of feats or retrain into PA at L2.
More cheese version:
step 1: take Strategy variant positive channeling
step 2: Take one level of Witch with the Coven hex.
step 3: Get a Ring of Tactical Precision.
step 4: Cast Army Across Time to summon CL/3 copies of yourself.
step 5: enjoy a caster level boost equal to (CL/3)x(1+1+channel bonus) before you cast Emblem of Greed.
at level 20 that would result in a CL/BAB of 69