I remember you

The moment Alfred finished saying what he said, he teleported farther away while chanting. Ren started chanting as well while dashing forward following Alfred. Unfortunately for Alfred, he couldn't teleport multiple times in succession, while Ren could catch up with the sheer speed of his movement. 

When Ren caught up with Alfred he was about to slash down, but Alfred was finally able to finish his chant first. "[Ice Castle]" a giant fortress of ice was formed in the middle of the battlefield. This fortress was emitting an extreme level of frost, making anyone or anything that touches it transform into an ice sculpture. 

Ren who saw the spell used by Alfred smiled that vicious smile of his, he knew that Alfred would use such a spell. Based on their last encounter with the Elder Lich Alfred, it was easy to guess that his preferred magic spells revolved around ice.