Queen Aspheera, anciently known the Queen of the Wind, is the eldest daughter of her father, the sister of Caroline, and the half-sister of three other sisters. She currently rules over the Pyro Vipers in the Realm of Death, and is an old friend of the Dark Spinjitzu Master.
As a human, Aspheera was kind and loving, and looks similar to Caroline, but she started this game show of death when she was turned into a snake by Wu. Now she is violent and has deep hatred inside her heart. She ruled the Pyro Vipers in the Desert of Doom and later the Realm of Death, one of the Realms of Death.
She is the third villain introduced to have a vendetta against both Wu and his brother, the first were the Time Twins. However, chronologically, she is the first, as she swore revenge 1000 years prior to Secrets of the Forbidden Spinjitzu, while the Time Twins swore revenge 40 years prior to Hands of Time.
However, she only wants revenge on Wu for not freeing her from her cell and was trapped in an Ancient Pyramid for a millennium.
Her mission was to send Wu to the Never-Realm, but instead, Zane took the blast for Wu and was banished to the Never-Realm instead.
She is the second main antagonist to announce the title card at the beginning of an episode, the first being Garmadon.
She is the first villain with no intention of killing Wu or the Ninja. She just wanted her revenge on Wu by attempting to trap him in the Never-Realm, but instead banished Zane by accident. This was also shown after the Ninja accidentally released her and she drained Kai’s power she spared them, although her claim that it was because Kai "shared" the gift of Fire with her. She also knew that the pyramid that she left them imprisoned in was about to be destroyed by her lava spell.
It is unknown why she was wearing shoulder armor and with yellow glowing eyes while trapped in the pyramid, as she had neither traits before she was imprisoned.
Aspheera's name is a possible pun on the word "asphalt."
She and Vex are responsible for Zane becoming the Ice Emperor and wrecking havoc upon the Never-Realm, with her banishing Zane to the Never-Realm and Vex erasing his memories.
However, she had no intention of this as she meant to strike Wu with her staff but Zane took the hit for him, leaving him banished to the Never-Realm and later be found by Vex.
She is the second main villain that doesn't physically appear in a season finale, the first is Iron Baron.
“Hear me citizens of Ninjago! Among you somewhere lurks the treacherous deceiver, the traitor! The one who imprisoned me for thousands of years, and during all that time, one single thought sustained me. Revenge... revenge! And I will have it, I swear it! I will find you! I will find you or watch all Ninjago burn! Burn! BURN!”
Aspheera imprisoned the Ninja and later put them into a model of Isla Sorna from Jurassic World. Later, Aspheera met Wu and made a treaty that the Ninja could be released only if they give Aspheera the Heart of Sorna.