"Hiss hiss."
The fifth layer of the overlapping Runic Magic Circles intertwined with the flames from Merlin's Condensed Fire. Both were comparable in power, so neither could triumph over the other. Right now, Merlin had put all his power into Condensed Fire, so it was already almost at the peak of a Sixth-level spell.
However, it was still not enough. The fifth and final layer of the overlapping Runic Magic Circles did not give any indication of yielding and even managed to rebound a few fireballs of Condensed Fire at Merlin.
"Crack."
Merlin's Perfect Armor finally cracked apart due to the force of his own spells. Sure enough, even Perfect Armor was unable to withstand the attack of Condensed Fire.