Most valuable Speed Duel GX: Duel Academy Box cards

The most valuable Speed Duel GX: Duel Academy Box card on Lilycove is Dekoichi the Battlechanted Locomotive (SGX1-END05) at CA$3.16 (Market Price, as of 2026-11-04). The top 10 together come to CA$10.36.

1. Dekoichi the Battlechanted Locomotive (SGX1-END05) – Common / Secret Rare: CA$3.16 (Market Price, 2026-11-04)
2. Ojama Knight (SGX1-ENC23) – Common: CA$1.04 (Market Price, 2026-11-04)
3. Master of Oz (SGX1-ENI13) – Common: CA$0.95 (Market Price, 2026-11-04)
4. D.D. Warrior Lady (SGX1-ENE04) – Common / Secret Rare: CA$0.83 (Market Price, 2026-11-04)
5. Don Zaloog (SGX1-ENI04) – Common / Secret Rare: CA$0.81 (Market Price, 2026-11-04)
6. Destiny HERO - Dark Angel (SGX1-ENB09) – Common: CA$0.80 (Market Price, 2026-11-04)
7. Ojama Blue (SGX1-ENC11) – Common: CA$0.76 (Market Price, 2026-11-04)
8. Double Cyclone (SGX1-END15) – Common: CA$0.74 (Market Price, 2026-11-04)
9. Elemental HERO Flame Wingman (SGX1-ENA21) – Common / Secret Rare: CA$0.64 (Market Price, 2026-11-04)
10. Sphere Kuriboh (SGX1-ENI12) – Common / Secret Rare: CA$0.63 (Market Price, 2026-11-04)
11. Destiny HERO - Plasma (SGX1-ENB01) – Common / Secret Rare: CA$0.62 (Market Price, 2026-11-04)
12. Elemental HERO Thunder Giant (SGX1-ENA22) – Common: CA$0.60 (Market Price, 2026-11-04)
13. Exploder Dragon (SGX1-ENG08) – Common: CA$0.56 (Market Price, 2026-11-04)
14. Elemental HERO Plasma Vice (SGX1-ENA26) – Common: CA$0.55 (Market Price, 2026-11-04)
15. Cyber Blader (SGX1-ENE21) – Common / Secret Rare: CA$0.55 (Market Price, 2026-11-04)
16. Fusion Sage (SGX1-ENA13) – Common: CA$0.50 (Market Price, 2026-11-04)
17. Destiny HERO - Dasher (SGX1-ENB05) – Common / Secret Rare: CA$0.50 (Market Price, 2026-11-04)
18. Sonic Bird (SGX1-ENE03) – Common: CA$0.50 (Market Price, 2026-11-04)
19. Elemental HERO Steam Healer (SGX1-ENA24) – Common: CA$0.49 (Market Price, 2026-11-04)
20. Elemental HERO Darkbright (SGX1-ENA25) – Common: CA$0.49 (Market Price, 2026-11-04)
21. Ojama Black (SGX1-ENC03) – Common: CA$0.49 (Market Price, 2026-11-04)
22. Ancient Gear Beast (SGX1-END06) – Common: CA$0.49 (Market Price, 2026-11-04)
23. Geartown (SGX1-END14) – Common: CA$0.49 (Market Price, 2026-11-04)
24. Justi-Break (SGX1-ENI22) – Common: CA$0.49 (Market Price, 2026-11-04)
25. Crystal Seer (SGX1-ENF09) – Common: CA$0.48 (Market Price, 2026-11-04)

Prices are the headline price on each card page, in CAD, the same order as the set page's price sort. 218 of 218 cards have a recent price to rank; the rest are left out rather than guessed.