Syrlya shifts as he sees the neck turn, trying to cause more damage at the angle. Creatures, at least, are predictable, so Syrlya keeps his gaze trained on the wyvern's head as it flails after him. At least he knows he has its attention, now.

There's a burst of magic around Syrlya's person as it nearly bites into it, stunning the creature with a mental blow. It spares his shoulder, and with Strange poisoning it from the inside it probably doesn't have long.

Syrlya scrambles up when he feels its weight start to sag and jerks the blade out.