Choking Tentacle
The Watcher in the Water Nightmare #4 (x4)
(10) 2 5 1 4

Forced: After resolving an attack made by Choking Tentacle discard the top card of the encounter deck. If that card has a shadow effect or is a Tentacle enemy, attach Choking Tentacle to a character the defending player controls as a Tentacle attachment with the text:"Forced: After attached character readies. deal it 1 damage."