The original Triskaidekaphile appeared in Innistrad: Midnight Hunt Promos, in 2021.
The original art was by Slawomir Maniak.
Bloomburrow Commander
Innistrad: Double Feature
Innistrad: Midnight Hunt Promos
Innistrad: Midnight Hunt
Innistrad: Midnight Hunt Promos
Innistrad: Midnight Hunt
Innistrad: Midnight Hunt