The tangled struggle 8etween the green aus is exceedingly 8rutal and can last for sweeps. While dueling in such a monstrous form, their energy is inexhausti8le. The transform8tion taps into the cheru8s' latent connection with the enigmatic forces presiding over all that is eternal, and perme8ting all those endowed with immortality. Normally this power is only accessi8le to them during m8ting. In this form, they are only a8le to 8e injured 8y one another, and are otherwise indestructi8le. Hence the ritual can never 8e stopped 8y an outside force until it is complete.