Armour of daggerthist

Shining armour with a silver haze over shimmers into life around the caster. when in this armour you have a +4 to AC and when hit silver sparks like rain fall from the point of contact onto anything they touch (including skin) leaving drops of silver which can only removed by an expert crafts man. This armour has a HP Max: 12 and when reduced to 0 it explodes outward into a "cloud of daggers" dealing 4d4 damage in a 10ft range.