Rhymsok, As Phases of the Moon

As long as Rhymsok, As Phases of the Moon
is tapped, tapped wizards you control have
dreamwalk (They can't be blocked by untapped
creatures. Instead, tapped creatures can block
them.)
Whenever Rhymsok, As Phases of the
Moon attacks, you may tap and/or untap
any number of wizards you control.