Brawler, Big Bang Slash DragonFR

[AUTO]:When this unit is placed on (VC), choose a grade 3 or greater card with "Big Bang Knuckle" in its card name from your ride deck, and you may reveal it. If you revealed a card, or you have a grade 3 or greater vanguard with "Big Bang Knuckle" in its card name, Soul Blast (1), and draw a card. If this unit was placed by the D-Legion ability, your opponent chooses one of their back row rear-guards, moves it to an open front row (RC), and you get "All of your front row units get [Power]+5000." until end of turn. [AUTO]:When this unit is placed on (RC), if you have a vanguard with "Brawler" in its card name, Counter Blast (1), and draw a card. [CONT](RC):During your turn, if your vanguard is grade 3 or greater, for each of your vanguards with "Brawler" in their card names, this unit gets [Power]+5000.