道連れ michizure lit. “to force someone to join you unwillingly”
“When this Digimon is destroyed by battle, destroy the opponent’s Digimon it battled.”
A keyword exclusive to Purple Digimon that forces a Digimon that destroyed them by battle to also be destroyed.
Fatal Bond can only activate if the Digimon that destroyed the user belonged to the opponent and battled them.

Cards with Fatal Bond
Cards that bestow Fatal Bond
Cards that support Fatal Bond