Of course, strats differ based on the attributes but in general the Swap and Double Input cards are good, of course your Leo ability card, and possibly a Combo ability card. As for the gates, you might want to use Omega Leo to defeat Battle Axe, an attribute-dependant silver card, and whatever bronze card you want, possibly Trick Jump or Mega Warrior.
thanks and my Leo is ventus
You might want to use Darkus, Ventus and Subterra Combo then, and Trick Jump or Heat Haze would be good gates. I forget the Ventus gates, but you would want to use one that gives high bonuses to Ventus, maybe The Spires?
Thank you I just beat him Battle Axe IS Pwnage