First Look at Datamined Midnight Season 1 Tier Set Bonuses – Not Hero Talent Based

There's only two tier sets datamined in this current Midnight build, for Unholy DK and Ret Paladin.

Dread Plague damage increased by 25%. Virulent Plague damage increased by 25%.

Consuming Sudden Doom reduces the cooldown of Putrefy by 1.5 sec.

Expurgation deals 20% increased damage.
applies Expurgation at 50% effectiveness, while Divine Storm applies it at 25% effectiveness.