The Churning Machine

Any opponent may cast The Churning Machine
from the command zone and as if it had flash.
As long as The Churning Machine is in the
command zone, at the beginning of each end step,
add {c}. You don't lose this mana as steps and
phases end.
{0}, {t}: Return The Churning Machine to your command zone. This ability costs {2} more to
activate for each time its entered the battlefield
from the command zone. Only activate as a
sorcery.