Talk:Frost Jaw/@comment-2A01:79D:7372:6470:E4B4:4B0F:5F86:4F70-20190116130125

Dropped from a Terra Shockwave Moa Eximus in Profit Taker Stage 2, in the vault room where the first director spawns, before he or his hyena spawned.

The Codex (and this wiki as a result) seems to be inaccurate that this is a hyena-exclusive drop.