Did some tweaks to Sheila/Se'ela/Sa'alo/Shaxalot's model from January 2018 (around the same time as Woka's current tiger model). Sheila's name is the less common variation of "shaxalot", itself from the 'Ulmna word SXL meaning "deceased" and, literally, "wingless/flightless" (Charlotte's Omnarom name, Shaxlotis, is a clipped verbal form of it).

Sheila was originally a simple artificial intelligence installed into one of Alzbaraya's reality-warping engines but through successive exposure, "interfacing" with alzbaranu and upgrades Sheila eventually developed a self of their own. Sheila specifically is a fiery brown dwarf-like structure that generates a powerful midas (organic magic) field, making midas-based structures and beings possible so long they are within Sheila's area of influence. Sheila also manages the disembodied ethereal bodies of any midas-based entities who have since lost their physical body (for whatever reason). So Sheila is/controls a fiery location, can manipulate the "souls" of midas beings and takes the form of a hooved humanoid. Basically Satan 💁‍♀️ .