 K'ak' Yipyaj Chan K'awiil built over the Esmeralda phase in the mid-8th century.He removed the Hieroglyphic Stairway from the earlier building and reinstalled it into his own version, while doubling the length of its text and adding five life-size statues of rulers dressed in the garb of Teotihuacano warriors, each seated on a step of the stairway.At the base of the stairway, he also raised Stela M, with his own image.