As fate would have it, as the creature began its descent from its jump, its tail would rise, coming into the trajectory of the lance. Needless to be said direct impact would result in much of the tail being lost right off of the bat, with the remaining stubbs threatened by the chakra-based necrosis.
Howling out, and realizing that its attempt at concealment as naught, the beast landed, shaking the earth with its great size and seemingly shattering through it, the sound of broken ice likely resonating even through the storm. Descending into the cave systems below, the beast howled in pain and anger, it's flight turning into fight as the hunter clearly had it metaphorically cornered.
With the option of retreat gone, the beast took its great claws and severed the remainder of itss tail, cutting off a sense of aerial balance (and grace) and saving itself from the inevitable destruction, and pain, of rotting from the tail onward. With that lost, it would go down to all fours, its ability to balance on two nuetered by the loss of the tail.
Only one attack had reached it, so the beast began to assume that it had managed to take down the remainder; using the surrounding ice from the cavern below to seal up its wound, the beast took a deep breath, and released a mighty howl at the grounds beneath it. For those on the surface still, it would sound like the screech of Hades, a mixture of a lament and curse to its tormentor that destroyed many of the ice supports down below. This would cause a general cave-in of the ground, as the creature sought to bury its foe, or at least bring him/her back down to its level.
In addition to the ground seemingly crashing into the ground, the effect would announce its renewed desire to beat back the intruder with an offensive defense, rather than pure defense.