Trinity Dawn similarly had three new spells from her special class, Royal Elemental Master. Her level 50 & level 60 spells were the same as Master who had the Elemental Master special class, which were the Elemental Turbulence and the Tri-elemental Storm.
Her level 70 spell was different. While Master got Sea of the Elementals for his level 70 spell, she received Elemental Rain. Elemental Rain conjured a rain that dropped three different elemental energies in turns. The first was fire rain. It was followed by ice rain and ended with lightning rain. Each rain lasted one minute, so the entire spell's duration was three minutes.
In terms of damage, the Sea of Elemental hit harder but it was an instant spell. Elemental Rain dealt smaller damage but if the enemies stayed within the rain area for the entire spell, the combined damage surpassed the Sea of Elemental.