Took a run though the swamp. I got bitten by a titanaboa. I died, respawned and saw, you otter (lvl 3) killed a titanaboa (lvl 30). Do not underestimate. Unfortunately, 2 seconds later I see, your otter (lvl 3) was killed by a titanaboa (lvl 10) one up for my harry otter?
They can carry multiple artifacts, even on official, and provide hypothermic insulation against the cold. Literally a must have for running artifacts if you plan to spam run boss fights for element. 10/10 would smash again.