Memento K9

• Harpie's Feather Duster is Forbidden
• 47 cards first released after HAT's card pool closed (2014-08-13): "A Case for K9", Artifact Lancea, Ash Blossom & Joyous Spring, Called by the Grave, Crossout Designator, CXyz N.As.Ch. Knight, Dark Ruler No More, Divine Arsenal AA-ZEUS - Sky Thunder, Forbidden Droplet, Ghost Belle & Haunted Mansion, Goblin Biker Grand Breakout, Guardian Chimera, I:P Masquerena, Infinite Impermanence, K9-17 "Ripper", K9-17 Izuna, K9-66a Jokul, K9-66b Lantern, K9-ØØ "Hound", K9-ØØ Lupis, K9-X "Werewolf", K9-X Forced Release, Lightning Storm, Mementoal Tecuhtlica - Combined Creation, Mementomictlan, Mementomictlan Tecuhtlica - Creation King, Mementotlan Akihiron, Mementotlan Angwitch, Mementotlan Bone Party, Mementotlan Cranium Burst, Mementotlan Dark Blade, Mementotlan Fracture Dance, Mementotlan Fusion, Mementotlan Ghattic, Mementotlan Goblin, Mementotlan Mace, Mementotlan Shleepy, Mementotlan Tatsunootoshigo, Mementotlan Twin Dragon, Mementotlan-Horned Dragon, Mulcharmy Fuwalos, Mulcharmy Purulia, N.As.H. Knight, S:P Little Knight, Triple Tactics Talent, Triple Tactics Thrust, Vallon, the Super Psy Skyblaster

Checked against the HAT format Forbidden & Limited list (April 2014) as of 1 April 2014 and its card pool (no card first released after 13 August 2014), with the sizes and copy limits of a TCG deck.

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