Check out the Death Knight tier sets and bonuses coming in Vault of the Incarnates.
Death Knight Tier 29 Set Bonuses
Number of Set Pieces
Blood
Frost
Unholy
2-Piece Bonus
Death Knight Blood Class Set 2pc – When a Bone Shield charge is consumed you have a 20% chance to generate 1 Rune.
Death Knight Frost Class Set 2pc – Obliterate and Frostscythe critical strike damage is increased by 15%.
Death Knight Unholy Class Set 2pc – Bursting and Festering Wound grants your ghoul Vile Infusion, increasing their damage by 25% and Haste by 10% for 5 sec.
4-Piece Bonus
Death Knight Blood Class Set 4pc – After 10 Bone Shield charges are consumed gain 10% damage and Haste for 10 sec.
Death Knight Frost Class Set 4pc – Obliterate and Frostscythe have a 15% chance not to consume Killing Machine.
Death Knight Unholy Class Set 4pc – Your primary ghoul’s attacks have a 8% chance to increase your damage and Haste by 8% for 8 sec. This chance is increased to 15% during Vile Infusion.
Death Knight Tier 29 Set Appearances
Raid Finder Difficulty
Normal Difficulty
Heroic Difficulty
Mythic Difficulty