Faim had just gotten back on his feet when he sensed danger coming from behind him. He also felt that the axes lodged in his shield were pulled away by some external force acting on them.
Faim knew what was going to happen. Instead of confronting Eren, he drove the long shield into the ground and jumped over it to make it to the other side. Even he knew the black snake scales that had just formed were not enough to deal with Eren's crazy momentum. His scales needed time to manifest the way he wanted them to.
Bzzt. Bang. Swoosh.
Faim had just made it to the other side of the shield when he received a tremendous force acting on his body through the shield. He had attacked the shield with his two axes, over the same dent they had inflicted from the other side.
Eren attacked the shield multiple times within a fraction of a second. He finished off his attack with a round kick.