Build a deck with Genny
Cards · Thunder Dragon
Thunder Dragon Colossus

Thunder Dragon Colossus

DARK · Thunder / Fusion Effect Monster · Level 8 · ATK 2600 / DEF 2400
"Thunder Dragon" + 1 Thunder monster Must be either Fusion Summoned, or Special Summoned during the turn a Thunder monster's effect was activated in the hand, by Tributing 1 Thunder Effect non-Fusion Monster (in which case you do not use "Polymerization"). Cards cannot be added from the Main Deck to your opponent's hand except by drawing them. If this card would be destroyed by battle or card effect, you can banish 1 Thunder monster from your GY instead.

Is it legal?

TCGUnlimited (3)
OCGUnlimited (3)
Master DuelUnlimited (3)
Rarity: Ultra Rare (UR)
Genesys100 points

Price

About $0.48–$0.65 across printings and stores (as of Oct 8, 2026). See listings on TCGplayer · eBay · Cardmarket (EU)

Price history & alerts

Played in tournaments

In 11 recent tournament lists, mostly Blitzclique (7), Sacred Beasts (4).

Most often played with

Across the tournament lists that run Thunder Dragon Colossus: the share of those lists that also run each card.

Albion the Branded DragonAlbion the Branded Dragon
73% of listsCrackle BlitzcliqueCrackle Blitzclique
64% of listsBlitzclique AlternatorBlitzclique Alternator
64% of listsEcclesia and the Dark DragonEcclesia and the Dark Dragon
64% of listsHideout in the Sky, CoulombHideout in the Sky, Coulomb
64% of listsBlitzclique - SteppleaderBlitzclique - Steppleader
64% of listsGrain BlitzcliqueGrain Blitzclique
64% of listsBlitzclique - BreakawayBlitzclique - Breakaway
64% of listsSurge BlitzcliqueSurge Blitzclique
64% of listsSuper Starslayer TY-PHON - Sky CrisisSuper Starslayer TY-PHON - Sky Crisis
64% of listsWhisker BlitzcliqueWhisker Blitzclique
64% of listsEmi BlitzcliqueEmi Blitzclique
64% of lists

Printings

SetCodeRarity
2019 Gold Sarcophagus Tin Mega PackMP19-EN183Ultra Rare
OTS Tournament Pack 10OP10-EN001Ultimate Rare
OTS Tournament Pack 10 (POR)OP10-PT001Ultimate Rare
Quarter Century BonanzaRA03-EN036Collector's Rare
Quarter Century BonanzaRA03-EN036Platinum Secret Rare
Quarter Century BonanzaRA03-EN036Quarter Century Secret Rare
Quarter Century BonanzaRA03-EN036Secret Rare
Quarter Century BonanzaRA03-EN036Super Rare
Quarter Century BonanzaRA03-EN036Ultimate Rare
Quarter Century BonanzaRA03-EN036Ultra Rare
Soul FusionSOFU-EN037Secret Rare
Build a deck around Thunder Dragon Colossus
Genny reads every card ever printed, builds a legal deck around this one, grades it against the current meta, and the simulator can test it hundreds of times.
Build with this card
Share: XRedditFacebook