As Kat's flame came into contact with the Nightmare's slick form it instantly froze over. As soon as this happened the full strength of Kat's body slammed into the thin coated of ice sending shards flying, all packed with demonic fire, deeper into the thing's body.
A boom echoed out from the impact as the golem stumbled forward. As it bent forward at the spot Kat had struck, the ice only cracked more. Capitalising on this, the sakura tree slammed into the golems left side, smashing it to right.
That is where another crack sounded out from the spot Kat had attacked. The last vestiges of the inky substance froze over before breaking, sending the golem falling to the side. It looked like it was all happening in slow motion but, this was only an illusion brought about by its massive height.