"It's a Legendary Lich, you guys go ahead, I'll hold the rear!"
The Giants obeying Muria's order to assist the western countries of the continent in suppressing the undead, and shortly after they were discovered by Barbossa, also noticed the undead and ghost ships rushing toward them. The strongest Storm Giant, who spotted these rushing undead first, was resolute. He immediately sent out a distress signal to the legends of Xena Pus, and then let the Cloud Giants behind him retreat first on their floating ships.
This was the rule, and also the pride of the Storm Giant. The Storm Giant refused to let himself flee before a group of weaker Cloud Giants. If he did so, he felt he would no longer have the face to return to Xena Pus and continue following Muria.