Stoic Snake appears on the Paths 6 and 7 of Yomotsu Hirasaka within the Midnight Channel. Unlike other Snake shadows, it lacks the Stagnant Air skill, but tries to make use of Anima Freeze to Exhaust the party. After being defeated, it may drop a Forbidden Scale. Selling 10 Forbidden Scales at the TV extension of Daidara will unlock the Yume no Ukihashi ougi for Yukiko Amagi.
In Golden, Stoic Snake uses physical attacks and status ailments. It can drain SP using Spirit Leech. Its chance to poison with Poison Arrow is increased by Poison Boost.