These are the most popular Unholy Death Knight trinket combos. The most popular combo is House of Cards and Improvised Seaforium Pacemaker with 25.1% usage.
BiS Best in Slot data provided by Wowhead's Unholy Death Knight Best in Slot Guide.
These are the most popular Unholy Death Knight trinkets. The two most popular trinkets individually are Improvised Seaforium Pacemaker with 52.9% usage and House of Cards with 45.5% usage.