"Super Z Clash! Showdown in the Evil Castle!!" (超ゼツ激突！魔城の決戦!!, Chōzetsu Gekitotsu! Majō no Kessen!!) is the thirty-seventh episode of the Beyblade Burst Turbo season. It first aired on December 10, 2018.
- In the second match, Hearts takes notice of the new Super Z Beyblade's strength as Valt managed to gain one point.
- In the third match, Valt manages to activate his Super Z Awakening System, allowing Cho-Z Valkyrie to overwhelm Dead Hades and win the match.
- Valt reclaims the World Champion belt as Hearts walks away defeated and infuriated, with his elder brother Phi watching from afar.
- After challenging Aiger, Phi reveals that Phoenix has more darkness and taps in it, causing Phoenix to turn black.
- Phi defeats Z Achilles, breaking it into three pieces, and cleansing Aiger of his corruption.
- As Phi leaves with dissatisfaction over his victory, Aiger is left devastated over Z Achilles' destruction and flabbergasted by his own hubris.
- Aiger Akabane
- Valt Aoi
- Shu Kurenai
- Fubuki Sumiye
- Ranjiro Kiyama
- Naru Akabane
- Toko Aoi
- Nika Aoi
- Koji Konda
- Harumi Hijikawa
- Señor Hanami
- Z Achilles A4 11 Xtend+ (Aiger's; destroyed)
- Dead Hades 11Turn Zephyr' (Hearts')
- Cho-Z Valkyrie Zenith Evolution (Valt's)
- Phoenix P4 10 Friction (Phi's)
- Valt Aoi (Cho-Z Valkyrie Zenith Evolution) vs. Hearts (Dead Hades 11Turn Zephyr') = Valt & Valkyrie (3-1)
- Round 2: Valt & Valkyrie (Ring-Out Finish; 1pt)
- Round 3: Valt & Valkyrie (Burst Finish; 2 pts)
- Phi (Phoenix P4 10 Friction) vs. Aiger Akabane (Z Achilles A4 11 Xtend+) = Phi & Phoenix (2-0)
- Round 1: Phi & Phoenix (Burst Finish; 2 pts)
Special Moves Used
- Right before its Energy Layer breaks, Achilles can be heard shouting Aiger's name.
- When Valt was declared victor, his photo still potrayed him with Wonder Valtryek instead of Cho-Z Valkyrie.