The thing about a thrower/1h hybrid (no shield) is 21/18 is great, infact amazing at level 31. It works out at 31. At 30 and every level beforehand, it is too short in skillpoints.
My Main, Cyclopsided, Was 21/18 1h/thrower. At 30 it is meh. At 31 It's awesome. I'm at 32, So I have 3 shield skill now which is sweet.
The thing is You'll have to gimp your melee proficiency, otherwise it works.
Level 30 (4 420 577 xp)
Strength: 21
Agility: 18
Hit points: 56
Skills to attributes: 8
Ironflesh: 0
Power Strike: 7
Shield: 0
Athletics: 6
Riding: 0
Horse Archery: 0
Power Draw: 0
Power Throw: 7
Weapon Master: 3
One Handed: 69
Two Handed: 1
Polearm: 1
Archery: 1
Crossbow: 1
Throwing: 120
you need 120 throwing wpf to hit anything and be without penalty in decent armor..
Level 31 (8 892 403 xp)
Strength: 21
Agility: 18
Hit points: 56
Skills to attributes: 6
Ironflesh: 0
Power Strike: 7
Shield: 0
Athletics: 6
Riding: 0
Horse Archery: 0
Power Draw: 0
Power Throw: 7
Weapon Master: 6
One Handed: 122
Two Handed: 1
Polearm: 1
Archery: 1
Crossbow: 1
Throwing: 120
Build works out perfectly and awesome.
Alternatively if you're going to retire as soon as you hit 31 and not keep leveling, I suggest 21/15.
Level 30 (4 420 577 xp)
Strength: 21
Agility: 15
Hit points: 66
Skills to attributes: 2
Ironflesh: 5
Power Strike: 7
Shield: 0
Athletics: 5
Riding: 0
Horse Archery: 0
Power Draw: 0
Power Throw: 7
Weapon Master: 5
One Handed: 112
Two Handed: 1
Polearm: 1
Archery: 1
Crossbow: 1
Throwing: 115
Survivable with plenty of hp, build finishes it's core at around level 28, pump if mostly after.
Range is everything on the battleservers imo. The right swing of the long 1h swords can be pretty nasty, because people often underestimate the lenght of 1h weapons. Also 2hs and poles will try to outrange you if they see you fighting with a falchion. But you can still go with a shorter weapon, I wouldn't do it though.
This.