The Deep Wyrm is a wyrm boss. At the lowest Threat it has 1296 health, hits for 30 and carries 6 armor; the uber version you meet in the Mortal Arena has ×3 the health and ×1.75 the damage. You need Deep Wyrm's Heart to call it out.

Every kill rolls its list 5 times. 0 Uniques sit on it: no ordinary ones splitting 0.0% of it between them, and no Exceptional ones splitting the last 0.0%.

It fights with Opener, Tidebreath, Wing Buffet, Undertow, Submerge, Flood, Riptide, Maelstrom and Harass, and changes phase at 70% health.

It calls in Frost Whelp.