Tribal Buckler is a Defender Set, it provides a boost to the REG of all Defender type creatures.
Tribal Buckler I - Defender +3 REG:[]
Tribal Buckler II - Defender +6 REG:[]
Tribal Buckler III - Defender +9 REG:[]
Tribal Buckler IV - Defender +24 REG:[]
Tribal Buckler V - Defender +30 REG:[]