Whirlwind Brave Shooter

(This ability is active if you have one or more face up G units in total on your or G zone): 1 When this unit attacks, if it is the third battle of that turn or more, you may pay the cost. If you do, until end of that battle, this unit gets +5000, and ":When this unit's attack hits a vanguard, choose a card from your damage zone, and turn it face up.".