Though your Adhaero caused the Runespoor to be stuck to the ground, the thrashing the left head is doing breaks through the spell rather quickly because it is stronger than the intent of the whispered spell. The Runespoor never even realized it was stuck.

Soon after you complete the translation, the left head breaks free of the cage by smacking it against a tree nearby. It swiftly turns to look at you and hisses loudly. It then turns and looks at the middle head who is finally completely out of the daydream.

Before it can react, your Orchideous and Herbivicus spells distract and serve as an obstacle for the creature. But flowers and vines cannot stop this beast for long and it soon breaks free, sending a shower of flowers and leaves in your direction as if a flower shop exploded.

The Runespoor is now towering above you, calculating its next move. You’d better think quick, before it strikes!