The Tempestuous End

Return {x} target permanents to their owner's
hand. If {x} is equal or greater than 4, return all
non-land permanents target player control to its
owner hand. You may put on the battlefield a
card with converted mana cost of {x} or less from
your hand without paying its mana cost. Untap {x} lands.
It all started with an unusally high wave.
Now all they could see was water...