Morikawa Katsumi – Cardfight!! Vanguard – _Images

Katsumi Morikawa is a character in Cardfight!! Vanguard. Despite "katsu" meaning 'victory', he's one of the weakest known players in the anime, though this is due to the fact that he uses a deck with too many grade 3s.

He is very boastful, and is proud of his "strength" even though he has lost almost every Vanguard fight he has had, giving him the nickname "lose-umi" (often just called "loser" in the dub). He's very superstitious and regularly consults an astrology book. He also has a huge obsession with Ultra-rare member Kourin and is often 'fanboying' over her when he knows she's set to appear somewhere.

His main deck is a Kagerou (Cardfight!!) deck, with a random assortment of Grade 3s. It has more Grade 3s than any other grade, leaving him constantly with hands full of Grade 3s and nothing else, which he cannot Ride, and even if he does Ride them he cannot use them for Guarding or Boosting.

As a matter of fact, having many Grade 3s in a deck can be disadvantageous. Grade 3s have no shield, can only use their Twin Drive!! skill when they are in the Vanguard Circle, and some of them can only use their skills when they are in the Vanguard Circle.

It is shown he is actually an incredibly strong fighter when using a balanced deck as shown in Ride 51 when he forgot his deck and was given a Golden Mecha Soldier deck. He then won every fight he had in the episode.

Source: cardfight.wikia

Last entry on Sep 07, 2013