This is the Forge World Barbed Scythed at Warhammer World.
The Hierodule is a type of Tyranid Bio-Titan, but stands smaller than its more massive cousin the Hierophant. This class of bioform is brought into action only against the most determined defences. Hierodules are immense creatures, towering over the battlefield and bristling with spines, claws, tendrils and apocalyptic bio-weapons.
It is armed with four huge razor-sharp claws, each capable of slicing clean through a battle tank, and heavily protected by chitin plates, in places up to 30 centimetres thick. A Hierodule is far larger than a Carnifex, a monstrous-killing machine even by Tyranid standards.