Harpoon

A harpoon is a weapon described on UA 77.

A hit snags the target. When snagged, the wielder of the harpoon can take a E action to drag the victim, which does 1 point of damage to the victim and moves them 1“ closer to the wielder.

To get un-snagged:

See UA 77 for additional rules and stipulations. Also see the lasso and net.

1)
The rules say “poison”, but paralysis is the same category and doesn't suggest that the victim gets bonuses for racial resistance to poison and the like, which they certainly do not.