History Recap / OnceUponATimeS5E16OurDecay

* UncannyValley: Hades says he made the Underwold look like Storybrooke as a "gift" to Zelena.

* AdultFear: Zelena suffers from this throughout the episode, first when Belle runs away with her baby, then when she fears Hades will take her to use for the time travel spell, and then when she is forced to give her up to Robin and Regina to protect her. Robin and Regina suffer from it too, once they learn of the (supposed) danger from Hades.

* NotSoDifferent:

* RealityEnsues: Zelena's ChronicBackstabbingDisorder, especially in light of sincere efforts to reach out to her, means that [[CryingWolf no one is willing to trust her in the least]] even when she is ''begging'' for help. Even [[NiceGirl Belle]] won't take her at her word, saying "nothing good has ever come of trusting you."

* HamToHamCombat: Rebecca Mader and Greg Germann have a wonderful time playing off each other.

!Tropes

* SignificantBirthDate: Zelena finds it appalling that because of Cora's abandonment, she doesn't even know what day she was born, so Hades takes steps to find out the date. It turns out to be April 15th... the same day the ''[[UsefulNotes/RMSTitanic Titanic]]'' sank. The symbolism is likely unintentional, but it fits well with Zelena's destructive nature.

** The [[ClassicalMythology original Hades]] tried to woo his queen by improvising his resources to make her a garden of gemstones, much like how Hades in this series remakes Storybrooke for his love using the limited resources he has.

Zelena surprises the gang by showing up in the Underworld to reveal a past with Hades.

* RealityEnsues: Zelena's ChronicBackstabbingDisorder, especially in light of sincere efforts to reach out to her, means that [[CryingWolf no one is willing to trust her in the least]] even when she is ''begging'' for help. Even [[NiceGirl Belle]] won't take her at her word saying "nothing good has ever come of trusting you."

** Hades also says he know what it's like to have a sibling who gets everything you ever wanted while leaving you with nothing. Given his brother is ''Zeus'', sitting high and mighty on Olympus, he isn't wrong.

** Although she isn't the mother, Belle very much proves to be this in how she dives into a portal the destination of which she doesn't know, just to protect Zelena's baby (from her, she thinks). She also stands up to Zelena herself, both in Storybrooke and the Underworld. Appropriate since, as she finds out about her own impending motherhood when she gets there.

* BreakTheHaughty: This episode puts Zelena through hell in it's present day storyline.

* EvenEvilHasLovedOnes: Turns out Hades has been carrying a torch for Zelena for decades, and he seems sincere about it. But Zelena is understandably wary of him.

* JerkassHasAPoint: Zelena notes that Robin coming into the Underworld has prevented him from caring for his daughter. This fact is underscored by Snow and Charming's subplot in the episode
* MeetCute: Hades and Zelena, of all people, on the bicycle

** The [[ClassicalMythology original Hades]] tried to woo his queen by improvising his resources to make her a garden of gemstones, much like how Hades in this series remake Storybrooke for his love using the limited resources he has.

** Hades also says he know what its like to have a sibling who gets everything you ever wanted while leaving you with nothing. Given his brother is ''Zeus'', sitting high and mighty on Olympus, he isn't wrong.

* OhCrap: Zelena realizing she's in the Underworld.

* PetTheDog: In a weird way, Hades taking the trouble to learn from Cora (by torture) when Zelena was born, just on the off-chance he could tell her if they ever met again.

* RealityEnsues: Zelena's ChronicBackstabbingDisorder, especially in light of sincere efforts to reach out to her, means that no one is willing to trust her in the least even when she is ''begging'' for help. Even [[NiceGirl Belle]] won't take her at her word saying "nothing good has ever come of trusting you."
* TheReveal: Turns out Hades made the Underworld look like Storybrooke for Zelena.

* BaitAndSwitch: When Belle arrives at the nursery, she's acting skittish and out of sorts, intent on getting Zelena's daughter and the way the Blue Fairy looks supicious indicates it's Zelena in disguise. Then the real Blue Fairy shows up as it turns out the other one is actually Zelena.

* {{Glamour}}: Zelena once again uses this, this time to disguise herself as the Mother Superior so she can take her baby from Belle.

** Much like the [[Characters/ClassicalMythologyOlympians original Hades]] as well, the woman of his affections was resistance towards his advances/wooing.

** Belle's happiness at finding out she's pregnant is ruined by the realization Gold is the Dark One again and sold their baby long ago.