http://www.worldofraids.com/#scalingitems

The build introduced a new type of
item called "Heirloom" items that scale with the level of your
character.  The cool thing is these items are also Binds to account,
meaning that you can trade them between characters on the same account
whenever you want!  These items will scale with your character's level
from 1 all the way to 80, so no matter what level you are, you'll gain
some benefit from the item.

• Not all effects are available at level 1; they're gradually added in some cases as you gain levels.
• Currently the only Binds on account items available are found on the Emblem of Heroism token vendor in Dalaran.
• The items use a text color many will be familiar with if you've seen Martin Thunder.  This was originally used as the "Artifact" color code in the game files, but no Artifact quality items were ever implemented.
• The
  shoulder slot items all seem to gain a 10% experience gain bonus at
  some point.  It doesn't have it at level 1, but it does have it at
  level 55, 70, and 80.

(swift hand of justice) a attack power trinket that scales as you level

(discerning eye of the beast) a spell power trinket that scales as you level