Is this the first or second episode? It could be the morpheus character.
All the smoke is very strange. It might be a drean sequence. Or…maybe its the fear root plant. Emma eats it and has to fight her fears lije Charming and Rapunzel did. Both had to fight a cloaked figure
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"I could have the giant duck as my steed!" --Daniel Radcliffe
Keeper Of Tamara's Taser , Jafar's Staff, Kitsis’s Glasses , Ariel’s Tail, Dopey's Hat , Peter Pan’s Shadow, Outfit, & Pied Cloak,Red Queen's Castle, White Rabbit's Power To World Hop, Zelena's BroomStick, & ALL MAGIC