Ed-Zero's page

One aspect of the Zen Archer that people seem to not be taking advantage of is their Ki Arrows ability. This allows them to key their arrow damage to equal their unarmed damage. Porpertine did it here with his excellent build.

The monk has access to spells that the fighter simply does not because of being able to link it to their unarmed damage.

Monks Robe - Sets damage to 2d10
Strong Jaws - 2 size increases
Lead Blades - 1 size increase
Improved Natural Attack - 1 size increase (I would switch it for dodge at 7th and take out improved initiative at 1 for dodge)
= 4 size increases

Damage extrapolation: (This follows the small/large unarmed table)
Medium (2d10)->Large (4d8)->Huge (6d8)->Gargantuan (8d8)->Colossal (10d10)

The fighter simply cannot match this damage output. He cannot get access to Strong Jaws, Lead Blades or INA as all of these are keying off of the monks unarmed damage. The monk out damages the fighter, for at least 21 rounds/day, which nothing will survive past the first as:

Bow ki damage deadly vital strike +24 (2d10+4d10+18 & ditto)
Bow ki damage deadly flurry haste +27/+27/+27/+22/+22/+17/+17 (2d10+18)

becomes

Bow ki damage deadly vital strike +24 (10d10+4d10+18 & ditto)
Bow ki damage deadly flurry haste +27/+27/+27/+22/+22/+17/+17 (10d10+18)

Average damage/shot for 10d10+4d10+18: 95
Average damage/shot for 10d10+18: 73x7 shots = 511 damage on full attack

Would this benefit from being a synthesist summoner? Sure, you grow but you could get a bigger bite and multiple bite attacks.. just focus on biting and growing bigger and pretty soon you'd just be legs with mouths on it :D

Edit:

Remembered the spell Strong Jaws that increases your die damage by two steps. It's trivial enough to make a custom item that gives it permanently.

-Strong Jaws spell- two size categories
-Enlarge person spell - one size category
-Righteous Might spell - one size category
-Divine Vessel - one size category
-Monks Robe - one size category
-Improved Natural Attack - one size category (i think)
-Improved damage from eidolon - one size category
-Amulet of Natural Attacks
-Enchant your chompers with Fire, Sonic, whatever else you want to do
-Get some form of permanent haste for an extra bite attack

There is another spell that also increases die steps by one but I can't remember what it is right now.

With these, it doesn't matter how small your bite damage is, you're going to be doing colossal damage with it, which will be massive. Of course, if you want to opt of the spells that make you bigger...

Strong Jaws - 2
Monks Robe - 1
INA - 1
Eidolon - 1

That by itself is 5 jumps up which actually might already be colossal haha. Hope this is informative!

@Gobo Horde
If you're doing multiple colossal damaging attacks, the more the merrier, limiting yourself will only lessen your damage dealt.