Boarding Shield

Boarding shields confer a 5+ Invulnerable Save, but a model with a boarding shield cannot claim bonus attacks for having more than one melee weapon, or make attacks during the Assault phase using a weapon with the Two-handed special rule. Invulnerable saves granted by a combat shield or boarding shield do not stack with other Invulnerable Saves, but can benefit from rules (like cyber-familiar) that specifically increase existing saves. If a model has another Invulnerable Save then the controlling player must choose which one to use.