I think you are correct.

The flying tiger known as Kralus is the Angels’ messenger who has always delivered Khymian children at the beginning of their lives to the couples who would raise them. The name of Kralus has always brought joy to the people of Khymeria, for his coming has always brought a new Khymian child. But hidden within the ΛZMΛRÉ Dice is the secret to summoning Kralus to battle.