Final Turn!!!

This card cannot be countered.
You can only cast this at the beginning of
your untap step.
Until the end of your turn, negate all effects that prevent players from winning or losing. Then,
search your library for two dragon creature cards
and put them into play. They gain Haste, Double Strike and Trample.
At the beginning of your end step, if you haven't
won the game, you lose the game.