Seronia

Seronia is a large sphinx from Theros that was compleated sometime prior to Phyrexia's invasion of the multiverse. Before her compleation she frequented the temples of Meletis, on Theros, providing insight and philosophy. She was an envoy of the god Kruphix. Seronia's current whereabouts are unknown.

Early life
Prior to sparking, Seronia spent her life as a font of insight in the polis of Meletis. She was blessed by the Lost, voices of the souls displaced when a Returned crosses the river Tartyx. Seronia regularly used her blessings to bring ease to grieving families.

One day while in Kruphix's temple Seronia was overcome by a great dread, and was deceived by the Lost into ransacking the temple. When she realized what she had done Seronia fled for the mountains. In her grief her spark ignited and she planeswalked away.

Post Spark
As a planeswalker Seronia regularly brought information from other planes to Kruphix. The God's obsessive search for knowledge sent Seronia to more dangerous planes, until one day he asked her to go directly to New Phyrexia. That was the last time she visited Theros, and Seronia was compleated sometime prior to the Phyrexian invasion

Planes visited

 * Xoltan
 * Iir
 * New Phyrexia

Planeswalkers met

 * Essem

Trivia

 * Before compleation, each instance of Seronia was represented by the Sphinx token illustrated by Jesper Ejsing
 * A Duel Deck between Seronia and Essem was planned, but never finished