This is the Lego Knights Mech, or レゴ 軽装型鉄機兵, and is the creation of Moko. The Knight is another great addition to the vast Lego Mech/Robots MOC theme. This mech is a collection of normal Lego pieces and Bionicle. One surprising detail of this build is that the shoulders are upside down Bionicle skulls. Some of those new shield pieces are used in the waist area. This mecha comes equipped with a spear, sword, and shield. Making it ready for any fight. The shield is a giant saw blade, but the sword has a really interesting detail: the guard is an upside down horse armor piece. Even with all the detail, the Knights Mech is still very posable, making it a very dynamic MOC.
Check out the Lego Knights Mech, 軽装型鉄機兵, over here: http://blog.livedoor.jp/legolego05/archives/53161715.html