Kill 12 Mana Surges in the allowed time limit.
We are almost finished, but this last step is the most perilous, <name>.
I have the empty summoner's orb and am ready to empower it. We will do this by harnessing the energy of a mana rift. I'll cast a spell that will temporarily open a rift, from which creatures, mana surges, will pour out. You must defeat the mana surges and their power will be released, which I will then collect.
Kill enough mana surges before the rift closes and I will place all their collected energy in your orb.
You have not killed the required amount of mana surges, <name>.
You did it! I never doubted you for a second! Ok, maybe for just a second, or two... but basically I didn't have much doubt.