Amigara Fault

At the beginning of each player's end step,
that player must pay 1 life for each creature
he or she controls unless he or she sacrifices a creature to a hole of its shape.
"To my horror, the part corresponding to my
neck only got longer and longer, stretching it
until it should have torn off."
-Junji Ito, The Enigma of Amigara Fault