Denard walked over to the wall closest to him and took out a handful of 'Mana Circuits' then tossed them onto the wall. They were about 5 feet apart, but they were not placed flat on the surface of the wall, as most 'Mana Circuits' would be. Instead, they were stabbed into the wall like they were knives being stabbed into an enemy.
"Molten Leakage!"
Click!
All of the circuits erupted into bright, hot lava and shot off into the wall before they continued burrowing into the ground to where the closest targets were.
Denard had an affinity for lava, which is why he was the one Engineers that cycled through the barracks as reinforcements. His affinity was deadly, but it also had the added benefit of cooling and hardening. Which in turn would make the area that the lava passed through sturdier.