You've figured out how to use the single-person relics, but as you may have seen, there are bigger ones, which they surround.
Of greater concern to us are the guardians that are summoned through their use. These crystal constructs turned on their arakkoan masters long ago, and now endanger Ogri'la.
We would ask that you destroy one and bring us proof.
We abhor violence, but at least the construct that we have sent you against isn't a living being.
Speaking of which, do you have the head?
<Chu'a'lor beams at you with obvious respect.>
Not only are we impressed with the mental alacrity of you and your friends, but we are indebted to you, as is all of Ogri'la and the Skyguard, for helping to protect our way of life here.
And remember, <name>, at any time you can gather others and return to any of those larger apexis monuments to make use of them; as long as you have enough apexis shards to power it that is.