C815 Eight Trigram Formation of the Five Elements
The power of the attack did indeed weaken a lot, but even so, even if the pillar was sucked in, the force would still be able to take away the life of the creature that was devouring the pillar. However, the amount of invaders was small, so the rate of nibbling was relatively slow. Simply put, if the death was slow, it wouldn't be fatal just because the amount of invasion was small