Thanks to Stain the Mind and Infinite Obliteration, we have already seen similar mechanics to Denied
The deck starts by casting efficiently-costed dinosaur creatures with huge bodies and with powerful secondary abilities including draw effects (Atla), removal (Burning Suns Avatar, Kogla and Yidaro, Scion of Calamity, Wakening Suns Avatar, Zacama), free spells (Etali, Gishath), creature tokens (Ghalta and Mavren, Palanis Hatcher, Regisaur Alpha), acceleration (Hulking Raptor, Regal Behemoth), monarch (Regal Behemoth), haste (Regisaur Alpha), clone (Sunfrill Imitator), life gain (Verdant Suns Avatar, Zacama), and many many more
A playset of Secret Lair Evolving Wilds will cost about $1.50 through MTGOtraders.com or $1.44 through cardhoarder.com
Flexibility, X spells, mana reliability, blah blah blah
They dont stay for more than one song, though, and will leave just as quickly as they arrived
Jules's worst nightmare has power and toughness equal to the number of Swamps he controls