Deck Sugestion for...

[lassic23]

Luecon Knight i tried to beat him with Gykild but didnt work out so well(got him down to 16 >_<)

[GyroidFanatic]

Is that the first boss? If so, use someone that can use techs if you're a hunter, or someone with a lot of tech using monsters if you're an ARK. When he's white, use techs, when he's black, use physical attacks. Also, try to use lots of combos.