Although his Battle Card team (the Blue Wolves) is known to be pushy and unfair, Gustav seems to be all about fairness....until he loses. He tries to keep his cards after he bets them in the match, but because he forces Isabella to give up her Mew Card, she guilts him into doing the same.
He is a pushy and bossy leader, and his large buck teeth make him look like a rodent. When you come calling on Nelson's Mansion after you reach A Rank, Gustav will bet his Ghost card in a match against you.
Cards Owned[]
| Debut | Name | Monster | Description |
|---|---|---|---|
| Monster Rancher Battle Card 2 | Twinkle Deck | Mew Cards | Used at Nelson's Mansion. |
| Monster Rancher Battle Card 2 | Twinkle Deck | Mocchi Cards | Used at Nelson's Mansion. |
| Monster Rancher Battle Card 2 | Twinkle Deck | Ghost Cards | Used at Nelson's Mansion. |