K9 Trains

• Harpie's Feather Duster is Forbidden
• 42 cards first released after Tengu's card pool closed (2011-09-17): "A Case for K9", Ash Blossom & Joyous Spring, Barrage Blast, Called by the Grave, Chronomaly Vimana, Contact "C", Convex Knight, Double Headed Anger Knuckle, Exceptional Schedule, Flying Pegasus Railroad Stampede, Forbidden Crown, Forbidden Droplet, Heavy Armored Knight Babeldecker, Heavy Freight Train Derricrane, Infinitrack Goliath, Infinitrack River Stormer, K9-04 Noroi, K9-17 "Ripper", K9-17 Izuna, K9-66a Jokul, K9-66b Lantern, K9-66X "Jacks", K9-ØØ Lupis, K9-X "Werewolf", K9-X Forced Release, Lightning Storm, Mulcharmy Fuwalos, Mulcharmy Purulia, Nibiru, the Primal Being, Night Train Blue Traveler, Number 81: Superdreadnought Rail Cannon Super Dora, Qliphort Genius, Revolving Switchyard, Superdreadnought Rail Cannon Flying Launcher, Superdreadnought Rail Cannon Gustav Max, Superdreadnought Rail Cannon Gustav Rocket, Superdreadnought Rail Cannon Juggernaut Liebe, Therion "King" Regulus, Triple Tactics Talent, Urgent Schedule, Vallon, the Super Psy Skyblaster, Varudras, the Final Bringer of the End Times

Checked against the Tengu format Forbidden & Limited list (September 2011) as of 1 September 2011 and its card pool (no card first released after 17 September 2011), with the sizes and copy limits of a TCG deck.

Not checked: the TCG card pool (a card released only in the OCG).