This is actually quite useful for a paladin. Consider what the +8 Int does for us. First, +8 Int. Assuming at 60 the paladin formula for spell crit is:

[INT/29.5?]%

This gives us .27% crit chance for 8 Int.

Now, also assume that paladins have Divine Intellect, and Blessing of Kings, that increases the 8 int to about 9.6 (or 9.68, however, they do the math) int. Assuming they round up, that's 10 int.

Compare this to the ZG enchant, which give us 10 Stamina, 24 healing, and 7 defense. Assuming at this point that defense is all but useless for a current end-game raiding paladin, it comes down to +healing and stamina and more mana and spell crit.

With two enchants, you have the following totals:

ZG: 48 +healing, 200 health
LIbram: 20 Int (assuming BoK and DI talent), which gives us .54% spell crit, ~300 mana

Considering the limited number of ZG enchants you can get these days, +8 int doesn't look that bad.

Good to know info:
Unlike the Aldor or Scryer enchanting items. Which bind to you when you get them and then bind the item you use it on to you also.

Only the Arcanum binds to you. Using the Arcanum on an item does not bind the item to you.

So... +8 stam on a twink head piece is something to think about.

These enchants are no longer useable in the trade-screen. They will soulbind if used on an BoE item as well. This was done to nerf twinks further in the 3.1 patch.

Anyone who is turning these in for https://vanillawowdb.com/?achievement=2336 Insane in the Membrane
Will notice that this wont award any reputation to shen'dralar
what is rly odd if you ask from me