Normal: "The largest and most powerful of reptiles. It can regulate the damage it causes based on its opponent's strength. A formidable foe." Oversoul: "Now able to reduce its target's HP by half in a single hit. As an added bonus, it remembers how much damage it has taken when counterattacking." — Scan
In the Fiend Tale endings, a notable Lacerta used to work for a Great Malboro before forced to leave due to his friend's sudden abuse. But learning of a spring whose water can restore good mood, Lacerta attempted to get the ill tempered Great Malboro to drink it. But in the end, Lacerta had to assert himself and became the abusive one in their relationship.