| A Man In Black RPG Superstar 2010 Top 32 |
They prevent you from suffering the non-proficiency penalty. Using a weapon you aren't proficient with gives you a -4 penalty to hit.
| Allia Thren |
If you aren't proficient with a weapon you take a -4 penalty to all attacks you do with that weapon (and some feats you can't take for that weapon).
Not being proficient with armor means you take the Armor Check Penalty also on attack rolls, saves and a few other things.
So usually its bad to not be proficient in the equipment you use.
Edit: damnit, ninja'd by 6 seconds.
| Stynkk |
Hey there!
So, the benefit of having proficiencies with armor/weapons is that you won't take a penalty.
For example, if I had a Longsword and I didn't have Martial Weapon Proficiency then I would take -4 to all my attack rolls for not being proficient.
With Proficiency, I don't take any penalties.
With Armor, its a little different, but you'd get penalties to all your skills as well as your attack rolls.