The Echidna is a Batomys-class tank and the second prototype of her class used by Calamity Raven. It seems to have a lot of standard calibre cannons mounted around it and a large double barreled turret on its main hull, It also has 4 very large rocket launchers. The tank is commanded by Lydia Agthe. The Echidna makes a cameo in the crossover 3DS game Project X Zone.