Any help?Please?

[Mirinee]

fill up the rest of the deck with defense cards

That's right. With plenty of dice, you can really annoy someone with defense cards.

If he wants to use Sword types, use SW Guard. If he wants to shoot, then GN Guard. If he's doing lots of damage and using a big HP weapon, Companion!

Also watch who he's using. If he wants Orland, chances are he'll want to have lots of equipts, so try to Rampage him.

Hope it helps. I'm no good at Human vs Human offline either. I nearly always lose to my boyfriend who's lower CLv XD.