Hyperspeed

As an additional cost to cast this spell, choose a permanent you control. That permanent phases
out. (While it's phased out, it's treated as though
it doesn't exist. It phases in before you untap during
your next untap step.)
Split second (As long as this spell is on the stack,
players can't cast spells or activate abilities that
aren't mana abilities.)
Until end of turn, spells and abilities
you control have split second.