Bone-Hoarder Serpent

Capture (If a creature damaged by Bone-
Hoarder Serpent dies this turn, Exile it
instead. You may sacrifice it from Exile.)
"The Serpent is Holy. Boys sent to its lair to
retrieve it's hoarded remains return as Men.
The Serpent slain are as fitting for sacrifice
as the living, so long as the skull remains."
- Teachings of Huitzilnachon, Aztarch.