The answer blowing in the wind

Activated abilities of creatures you control cost less to activate. This effect can't reduce the mana in that cost to less than one mana.

If you would draw a card while your library has no cards in it, you win the game instead.

Flying , Return two lands you control to their owner's hand: Copy target instant or sorcery spell. You may choose new targets for the copy.

Each player discards their hand, then draws cards equal to the greatest number of cards a player discarded this way.