Eli Harper was a marine biologist fascinated by the interaction between fire and water ecosystems. During a research expedition to an underwater volcanic region, he discovered a rare crystal imbued with ancient elemental powers. When the crystal was activated by a volcanic eruption, it merged with Eli, granting him the incredible abilities to manipulate both fire and water. He adopted the persona of Tideflame to protect the world's oceans and balance the elemental forces that now flow through him.