Yugioh!!!!

here's a puzzle you should solve:

both you and your opponent have 50 LP

you have no cards in your hand, or on your field.

your opponent have the following monsters on the field:
Jinzo, Spell canceller, Patrician of Darkness, sasuke samurai, different dimension dragon (defense position)

And it's your turn, and you only get to draw one card, there's no effect that's going to be activated in the graveyard ( that means cards suck as tree-born frog cannot be in the grave yard).

You ended up winning the game, how do you win?

what card did you draw?

you can make any assumption to what's in the graveyard, what you draw, what the outcome of tossing a coin or throwing a dice is and etc...

edit: congratz to ruust for solving the first part of the puzzle,

2nd part: not only win but clear your opponent's field.