Eztli Mogol appears as a tall, translucent orcish priest whose outline wavers like a reflection seen through rain. His skin has the dull, pebbled texture of river stone beneath a thin sheen of water, and his old ceremonial wraps drift around him as if suspended in a slow current. He moves with the patient, weightless glide of someone who has forgotten the need to plant his feet. In a room, his pale eyes rarely meet anyone's gaze; they keep measuring doorways, windows, and the direction water would run. He smells unmistakably of wet clay, pondweed, and the mineral tang of a deep well, and seems not to realize that others can notice.

Mogol is frank about danger but tender toward people who have already suffered for someone else's plan. He carries a priest's patience in conversation and a watchman's suspicion of easy answers. When calm, he listens closely and leaves space for others to speak; when he senses someone minimizing the cost of a decision, he becomes blunt and difficult to redirect. He is compassionate without being comforting, and accepts responsibility more readily than forgiveness.

In life, Eztli Mogol served as the ancient Priest of Water, tending sacred springs and guarding the knowledge of the elemental stones. When the Abyssal Titan began to threaten the waterways, Mogol chose to give it his elemental stone willingly, believing that placing the power in the hands of a guardian would keep it from a worse catastrophe. The choice protected the region for a time, but bound the stone to a dangerous creature and left Mogol haunted by the harm that followed. Before his death, he discovered a portal hidden in the woods that led beneath the sea to the Titan and the Stone of Water. He died before he could finish resolving the danger, leaving the route and its warning as his final charge. Centuries later, the Avengers summoned him with the Ancient Shackles. He told them plainly that the Titan had to die if they meant to recover the stone. Bubu Sh'Bunka scouted the portal, was pulled into the ocean when her rope snapped, and glimpsed the Titan before escaping. The Avengers eventually returned with the Stone of Water and brought it with the other elemental stones to the Temple of Gruumsh. Mogol knows the immediate task is complete, but cannot tell whether the Titan's death ended the danger or merely changed its shape.