Supernal Broadsword is a Defender set, it provides a boost to the ATK of all Defender type creatures.
Tribal Buckler I - Defender +10 ATK:[]
Tribal Buckler II - Defender +9 ATK:[]
Tribal Buckler III - Defender +30 ATK:[]
Tribal Buckler IV - Defender +60 ATK:[]
Tribal Buckler V - Defender +50 ATK:[]