Writhing Tentacle
The Watcher in the Water Nightmare#3 (x3)
(46) 4 4 0 3
Forced: When Writing Tentacle engages a player, discard the top card of the encounter deck. If that card has a shadow effect or is a Tentacle enemy, Writhing Tentacle makes an immediate attack, then attaches to the defending character as a Tentacle attachment with the text: "Attached character cannot commit to the quest."