A smirk crosses Lavender's face when the bugbear uses lightning of all things to attack their hydra. She could feign offense at someone treading on her territory, but the booming success of her previous spell left her too excited for that. She had come up with a better way than brute force to defeat a hydra and this fellow caster's inability to do so would be his downfall. Seeing the wounds on their pet already closing she decides that delaying the caster is all that is needed to ensure victory in the courtyard. Stepping into the breach she slams her spear into the ground, a loud boom ripping through the air above as an explosion of sound errupts right behind the bugbear.

Spoiler
Show
Move to K19

Great Thunderclap so it hits the bugbear.
Fort 16 or deaf
Will 16 or stunned