Today a tiny Kraken—or at least tiny compared to a Kraken.
Replace the ink with devastating acid, make it a stealthy monster and now your players will not want to be dragged underwater by this thing. Enjoy! Evan | MonkeyDM
P.S: You can find the cousin of this monster, the maddened thrasher on my Patreon
(Dungeons & Dragons 5e Monster)