The Astral Clocktower

{t}: Add {c}.
{1}{w}, {t}: Put a dial counter on another target
legendary creature you own.
When permanents you own with a dial counter
on it leaves the battlefield, you may put one of
them onto the battlefield under your control at
the beginning of your next upkeep, it gains haste
if its a creature. Sacrifice The Astral Clocktower.