Death Knight Tier Set Bonuses - Dragonflight Season 1
Blood
(2) Set Bonus: When a Bone Shield charge is consumed you have a 20% chance to generate one rune.
(4) Set Bonus: After 10 Bone Shield charges are consumed gain 10% damage and Haste for 10 seconds.
Frost
(2) Set Bonus: Obliterate and Frostscythe critical strike damage is increased by 15%.
(4) Set Bonus: Obliterate and Frostscythe have a 15% chance not to consume Killing Machine.
Unholy
(2) Set Bonus: Bursting a festering wound grants your ghoul Vile Infusion, increasing their damage and attack speed by 10% for 5 seconds.
(4) Set Bonus: Your primary ghoul’s attacks have a 15% chance to increase your damage and Haste by 10% for 8 seconds. This chance is increased during Vile Infusion.