My Team:
Blastoise (Water, Final)
Tentacruel (Water/Poison, Final)
Marowak (Ground, Final)
Geodude (Rock/Ground, Basic)
Onix (Rock/Ground, Final)

Round 1:
Vs
Both are Basic, but Geodude has type advantages (Rock Vs Fire and Ground Vs Fire). Geodude wins!

Round 2:
Vs
Both are Final, but Onix has type advantages (Rock Vs Fire and Ground Vs Fire). Onix wins!

Round 3:
Vs
Both are Final, but Blastoise has a type advantage (Water Vs Fire). Blastoise wins!

Round 4:
Vs
Both are Final, but Tentacruel has a type advantage (Water Vs Fire). Tentacruel wins!

Round 5:
Vs
Both are Final, but Marowak has a type advantage (Ground Vs Fire). Marowak wins!