Culling Chronostat

If an effect you control would last this turn or
until end of turn, it lasts until the end of your
next turn instead.
If an effect an opponent controls would last this
turn or until end of turn, it lasts until the end of
the phase instead.
So fine is their control of temporal borders that they
can age the rivets off a suit of armor or prolong a flash
of lightning to illuminate the night.