Attribute Beyond Rank 12

Is it true that once an attribute reaches rank 12, it starts to gain less benefit per level than before rank 12? Thanks in advance.

depends. best answer i can give

lol, elaborate "depends" please. You mean it depends on the atribute? How about swordsmanship, healing prayer, and elemental (air, fire, earth water) magic?

Well, if you take Energy Storage for an Ele, you will receive +3 energy per level after 12 just as the previous levels. Strength you will get 1% armor pierce, Divine Favor +3.2 health healed per spell...so for those its the same. If would like to know how it effects the skills, I am not particularly sure.

Test it out with runes and see :P

I read something on guild wiki (and only guild wiki, not on GWW) that after rank 12 for swordsmanship, the chance for critical or was it attack rating or something like that increase by less than half the amount per level. So if I use an attribute helm and minor rune then I should only get my rank up to 10?

There's no way to test this, the effect is too small to compare.

The biggest thing to check for are turning points for certain skills. A skill may do +24 damage when the attribute is 12, and +28 damage at rank 13. It may cost you, however, 20 attribute points to get from 12 to 13, yet those same 20 points could bring an attribute from 0 to 5. So it's not a matter of diminishing returns per se, it's a matter of whether the attribute points required to raise a stat from 12 to 13 are worth it or better used elsewhere.

Here's a good example:
[skill]enraging charge[/skill] returns 3 adrenaline at 12 strength, but it requires 15 strength for it to return 4 adrenaline. That difference determines if you can use that heavy-hitting 4-adrenaline skill right afterwards, or only a weaker 3 adrenaline cost one...

Depends on the skill itself. Go to wiki and check out the individual skills on your skillbar and what effect its attribute lvl has on it.

Weapon attributes (and Beastmastery) are the ones that gain less past a rank of 12. As per [wiki]Damage calculation[/wiki], each additional rank in your weapon attribute adds 5 to your damage rating up to rank 12; past that each additional rank only gives +2.

Interesting, I never actually knew that...

Your weapon mastery attribute should be as high as possible to deal the most damage.

With my ele, afaik the break points get larger (ie, gaps between are larger, so less benefit between the gaps) after 12. I would have to check it though...

The Healing Skill Mending is a good example of a skill topping out.

0 skill = +1
3 skill = +2
8 skill = +3
13 skill = +4

You cannot get to +5 by adding the max skill points so if your only aim in using healing was to have mending there isn't any point going all the way.

So a Monk primary using runes could take the skill to 13 and have 30 points to use elsewhere
While a Monk Secondary could stop at 8 gaining a perfectly usable +3 without having to mess up their primary skills.

that's the answer if we're talking about a Max level character

The diminishing returns start from level/2 + 2. So a level 18 character will get the +2 starting at attribute 11. A level 16 character from attribute 10. And so forth.
However this is explained in the link of Savio and if you would have read it, this information is redundant.

I don't know how it works on odd levels.

Thank you very much.

But like you said, it's not worth it anymore to get it beyond 12.

There are diminishing returns, yes; but what else are you going to put your attribute points in? Strength gives less to your damage than increasing your weapon attribute does, Tactics is pretty worthless, and there really aren't secondary attributes you need to pump up. Even though it's less of a gain, it's still a gain.

Now what about all the people who say superiors aren't worth it? That goes against what you said about getting your weapon mastery as high as possible (as in using a superior rune to get your mastery to 16).

Oh yeah, by the way, it says that on wiki you can get an attribute to 20. How is that possible? I can only add up to 16 (12 +1 attribute helm +3 superior rune).

The only way to get your attributes past 16 is in PvE. There are shine blessings plus the bonuses from items like Golden Eggs, Candy Corn, Lunar Fortunes I think. I bet there are a couple more items I forgot about, too.