I retract the spikes from the ground. They seem to have provided little protection from the looks of the crowd that has gathered and, from what the Vampire said, the symbols were merely some sacrificial ritual.
After expending so much biomass I feel slightly drained, but push past it, altering right arm into a 5-foot blade.
I watch the Vampire snare a lizard-thing around the foot and charge into action, swinging my bladed arm from left to right, charging the Vampire.