Use your Mana Tap racial ability on creatures with mana six times, then return to Arcanist Helion.
If there is only one lesson you deign to remember from your time on Sunstrider Isle, let it be this - control your thirst for magic. It is a thirst unending, <name> - you must absorb energy to survive via Mana Tap, and you must control how you release it via Arcane Torrent. Failure is to become one of the Wretched... hopelessly addicted and insane.
Seek out creatures on the isle that have mana and Mana Tap them. Learn to master your cravings of power. When you have sufficiently fed, return to me.
You can choose one of these awards:
Ah <name>. Have you completed your task?
You've done well today, <name>. Your willingness to learn shows that you may very well rise above the unyielding cravings you must endure as a <race>.
Rest not on your laurels, young one, but instead seek to master what you have learned. Only through diligence will we as a race survive.
Upon completion of this quest you will gain: