Bird is the word

• Harpie's Feather Duster is Forbidden
• Change of Heart is Forbidden
• 39 cards first released after Tengu's card pool closed (2011-09-17): Accesscode Talker, Ash Blossom & Joyous Spring, Called by the Grave, Cosmic Cyclone, Dark Ruler No More, Dimension Shifter, Divine Arsenal AA-ZEUS - Sky Thunder, Downerd Magician, Elder Entity N'tss, Evenly Matched, Floowandereeze & Eglen, Floowandereeze & Empen, Floowandereeze & Robina, Floowandereeze & Snowl, Floowandereeze & Stri, Floowandereeze & Toccan, Floowandereeze and the Advent of Adventure, Floowandereeze and the Dreaming Town, Floowandereeze and the Magnificent Map, Floowandereeze and the Unexplored Winds, Garura, Wings of Resonant Life, Golden Cloud Beast - Malong, Harpie's Feather Storm, Herald of the Abyss, I:P Masquerena, Infinite Impermanence, Kikinagashi Fucho, Lightning Storm, Lyrilusc - Assembled Nightingale, Pot of Prosperity, Raiza the Mega Monarch, Relinquished Anima, S:P Little Knight, Selene, Queen of the Master Magicians, Super Starslayer TY-PHON - Sky Crisis, Superdreadnought Rail Cannon Gustav Max, Swallow's Cowrie, Triple Tactics Thrust, Wind Pegasus @Ignister

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).