Yasuo, Nightbringer

+2: You may discard up to 2 cards. If you do, Yasuo, Nightbringer deals damage equal to the number of cards you discarded plus 1.
-3: Create a 0/4 Wall creature token with defender named "Wind Wall" with "Prevent all damage dealt to this creature."
-7: Until the end of turn, if a source you control would deal damage this turn, it deals double that damage instead.