Premise: We know that Mordremoth was able to utilize - and yes, corrupt - corpses. Though the Blighting Trees do not corrupt corpses, Mordrem Troll and Mordrem Wolf are both confirmed cases of corrupted corpses. But as far as we know, the case of troll and wolf is the same as Corrupted Tree for Zhaitan - an uncommon occurance
Statement: But as far as we know, the case of troll and wolf is the same as Corrupted Tree for Zhaitan - an unusual occurance
Relationship: entailment