Weapons with [TWIN-LINKED] in their profile are known as Twin-linked weapons. Each time an attack is made with such a weapon, you can re-roll that attack’s Wound roll.

Profiles:

Melee Weapons	Range	A	WS	S	AP	D	Keywords
Monstrous bonesword and lash whip	Melee	6	2+	9	-2	3	Twin-linked

Used By (2)

Xenos - Tyranids/Hive Tyrant/Wargear Options/Monstrous Bonesword and Lash Whip(Group)

Xenos - Tyranids/Winged Hive Tyrant/Wargear/Monstrous Bonesword and Lash Whip(Group)