Below is a walkthrough for the Ancient Powers (Part 2) side quest in Tiny Tina’s Wonderlands. To obtain this quest, speak with Dryxxl after completing the Ancient Powers side quest.
Initiate the ritual
When you’re ready to begin the fight interact with Dryxxl.
Offer life essence
Interact with the thing in the middle of the room.
Take spell
Grab the spell from the ground near the object in the middle of the room. This will complete the quest.