Esika

Esika is the green-aligned god of the World Tree from Kaldheim.

Description
The quiet and humble Esika understands the World Tree and the Cosmos better than anyone, even Alrund. Her deep connection to the World Tree lets her communicate with the Cosmos in ways that she is just beginning to understand; ways that confound even the other gods. What's more, she has walked every realm and knows how each forest connects to the World Tree.

She provides the other gods with her Cosmos Elixir, made from the sap of the World Tree, which provides the other gods with their immortality, power, and divinity. She is the only one who knows how to make the elixir, and she's not planning on sharing her secret with anyone.

History
Esika and her sister Tergrid came into being when Alrund used runic magic in an effort to commune with the World Tree.

When Vorinclex came to Kaldheim, he used Tibalt to distract people away from his plans. He found Esika's sanctum and mauled the goddess; dying, she witnessed him taking a tyrite sample and returning to New Phyrexia.

Trivia

 * She is based on Idunn, the Norse goddess of apples whose fruits provide the Aesir gods with immortality.
 * The Prismatic Bridge is a reference to the Bifröst, the rainbow bridge that reaches between Midgard (Earth) and Asgard, the realm of the Aesir. Esika may also have a connection with Heimdallr, the god who guards Bifröst.
 * Esika's Chariot is a reference to the chariot of the goddess Freyja, who is guided by cats.
 * Being the "God of the World Tree," Esika has a relationship with Odin, since the name of the World Tree Yggdrasil name is: Ygg's horse (Ygg is one of Odin's other names).