Permanents you control have
ward (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays .).
At the beginning of your end step,
mill (To mill a card, a player puts the top card of their library into their graveyard.) two cards, then exile a nonland card at random from your graveyard. Copy it. You may cast the copy without paying its mana cost.
(A copy of a permanent spell becomes a token.)