The fiercely aggressive jormungar are a marvel of evolution, possessing rows of chisel-like teeth capable of boring through solid rock, as well as muscular, flattened bodies well adapted to rapid underground navigation. Legends tell of the nerubians' using the jormungar as creatures of labor, forcing them to carve massive tunnels through Northrend's subterranean ice and lay the groundwork for the nerubians' ancient civilization. With the fall of the nerubian empire, swarms of rogue jormungar ran amok, drilling through the region's permafrost, attacking surface dwellers, and devouring everything in their path.
这些非常富有攻击性的Jormungar是进化的奇迹。他们凿子般的牙齿能轻松钻透岩石，而他们肌肉壮实的扁平身体给了他们在地下快速移动的能力。
传说Nerubians蛛人们能够驱使他们干活，蛛人上古文明的象征——贯穿整个诺森德的地下隧道网就是由它们奠定的基础。在蛛人帝国陨落之后，无数失去主人的Jormungar四处乱跑，钻穿冻土，攻击地表生物，以及吞噬一切挡在他们路上的人。
以下为剧透：
Jormungar的皮之于普通的诺森德皮，约略相当于魔皮/魔鳞之于结缔皮...问题就是暴雪还没做第二种异种皮 - -0
