Poison Serpent SW145SD is a Defense-Type Beyblade from the Metal Fusion series. This top is known for its unique design elements, creative aesthetic, and adaptable performance. It’s used by the cunning Beyblader Reiji Mizuchi in the Metal Fusion anime series.
Specifications
- Type: Defense
- Spin Direction: Right
- System: Hybrid Wheel System
- Owner (Anime): Reiji Mizuchi
- First Appearance: Metal Fusion
Part Breakdown
Face Bolt – Serpent
The Face Bolt features a snake emblem, reflecting the Beyblade’s namesake and the owner’s slithering, strategic battle style.
Energy Ring – Serpent
This piece is shaped with coiled serpent details, lending a snake-like appearance. It’s designed for moderate weight distribution and contributes to balance.
Fusion Wheel – Poison
The Poison Fusion Wheel includes 15 small protrusions that mimic fangs or scales. While it offers visual uniqueness, its attack and defense properties are moderate compared to other top-tier wheels.
Spin Track – Switch 145 (SW145)
One of the more innovative parts, SW145 allows users to switch between two modes: Attack Mode and Defense Mode. The large, extending arms on the track change how the Bey interacts with opponents based on orientation.
Performance Tip – Semi-Defense (SD)
This tip features a semi-flat point, offering a stable spin pattern and decent defensive qualities. It’s designed to withstand incoming attacks while preserving stamina.
Battle Strategy
Poison Serpent SW145SD is ideal for Bladers who want to control the pace of a battle. With its switchable Spin Track and balanced tip, it performs well defensively while maintaining stability. However, it’s not suited for aggressive playstyles and may struggle against high-speed Attack Types.
Fun Fact
- Reiji Mizuchi’s battle style is as deceptive and strategic as the Serpent itself.
- SW145 was one of the earliest Spin Tracks that allowed in-battle mode switching.


