If the abyssal tentacle is not protected upon death, it will fully degrade into a kraken tentacle. However, if it is protected on death, it will remain in its regular state as the abyssal tentacle. In addition, the abyssal tentacle does not stack in the bank, regardless of the number of charges the Abyssal tentacles have. When using the items on each other there will be a warning message that states The tentacle will gradually consume your whip and destroy it. You won't be able to get the whip out again. The combined item is not tradeable.