"I didn't bother to tell her she was being hunted"
This particular casually clad duplicate of the more widely known malevolent mercenary seemed to talk a bit more, and boldly at that. His words still seething with the seductive entice most recognized, if not more so given this avatars propensity towards the mortal sins more so then some omnipotent deity. Since he'd approached further off to Trinity's right, still hefting Deception over his shoulder he'd simply brandish a faint devilish grin towards who he assumed was Wyvern. The erupting shadows wouldn't force Leo into any sort of heroic action, rather his own accumulation of Recondite darkness would pulse briefly as if to muse at the malevolent force dragging Trinity off.
"Not that she would have listen to me. She's quite the head strong sort."
All of his words would be directed towards Wyvern, though he doubted he'd get much of a reply. In either case, Leo would leisurely follow off towards where ever the pool of strangling shadows dragged Trinity. Taping Deception massive form on his shoulder idly, caressing both luminescent oculars off towards the vaguely distant form of Sieg now fighting James rather then Yusuke. Aware that he knew most of these individuals more so from passing introductions, previous wars, or tournaments he'd treat them like he'd treat anyone else. With a calm, collected casualness as if he'd known them all for years. In terms of detection, Leo wouldn't exude any expanding manner of aura/energy/magicks aside from the manifestation of Recondite shadows which for the moment served more as visual phenomenon then some fluctuation of physical energies.