when any enemy within the aura makes a death saving throw, each conscious enemy within the aura takes 10 psychic damage.
when any enemy within the aura makes a saving throw against ongoing damage, that enemy is weakened until the end of its next turn. Enemies within the aura can choose not to make saving throws against ongoing damage to avoid this effect.
Torog cannot be knocked prone. He takes no penalties for his ruined legs, and crawls at his normal speed.