Syrlya purses his lips in a thin line before taking the vorpal sword after he sets his current blade aside. Ignatius can reform parts of himself, so this isn't permanent... but still a little fucked up.

"All right." He levels the end of the blade with Ignatius's arm. "Then I'll cut right above the metal."

Ignatius gets a brief second to protest if he's going to, before Syrlya presses his crystal hand further along the hilt and then puts his weight into cutting down Ignatius' arm in as fast and forceful of a move as he can manage. Hopefully, it's enough to manage it in one attempt.