At the start of 'phase two', while the rest of the espers were fighting the Fragments, Iore and the Spirit Queen worked together to get rid of the ominous fume above the palace rubble.
With the espers working hard to separate the Fragment and the Chimera, this fume became a curtain between two battles and once again, Zein had to grit his teeth because Bassena was alone again, separated from the rest of them; away from healing and guiding. He had to step back and move to a safer location, which was closer to the Fragments than the Chimera.
The cloud itself was letting out a dark rain that melted the debris it touched. It was hard to watch the battle of the two giants behind the curtain of the dark rain, and it was even worse when the raincloud started to actively look for things to melt.
