The curse of the stone illness

All living creatures under the control of
target opponent gets -5/-5, only if he won't
pay {10}. If he does this he loses 8 lifes
"Mom... Is it true that there is a disease that
makes the skin as hard as the bark of a tree?
And you start gradually losing your memory,
until you turn into stone and ... die?"
— Higashikata Noriske