diff --git a/sim/deathknight/dps/TestFrost.results b/sim/deathknight/dps/TestFrost.results
index bf8cd094f4..8379397046 100644
--- a/sim/deathknight/dps/TestFrost.results
+++ b/sim/deathknight/dps/TestFrost.results
@@ -297,8 +297,8 @@ dps_results: {
 dps_results: {
  key: "TestFrost-AllItems-IncisorFragment-37723"
  value: {
-  dps: 7761.73661
-  tps: 4595.72263
+  dps: 7765.96554
+  tps: 4598.25999
  }
 }
 dps_results: {
diff --git a/sim/deathknight/dps/rotation_frost.go b/sim/deathknight/dps/rotation_frost.go
index a044ca4799..4ec9d602a5 100644
--- a/sim/deathknight/dps/rotation_frost.go
+++ b/sim/deathknight/dps/rotation_frost.go
@@ -23,11 +23,14 @@ type FrostRotation struct {
 	indestructiblePotionMCD *core.MajorCooldown
 	potionUsed              bool
 
+	onUseTrinkets []*core.MajorCooldown
+
 	oblitRPRegen float64
 }
 
 func (fr *FrostRotation) Initialize(dk *DpsDeathknight) {
 	fr.oblitRPRegen = core.TernaryFloat64(dk.HasSetBonus(deathknight.ItemSetScourgeborneBattlegear, 4), 25.0, 20.0)
+	fr.onUseTrinkets = make([]*core.MajorCooldown, 0)
 }
 
 func (fr *FrostRotation) Reset(sim *core.Simulation) {
@@ -41,10 +44,22 @@ func (fr *FrostRotation) Reset(sim *core.Simulation) {
 	fr.berserkingMCD = nil
 	fr.potionOfSpeedMCD = nil
 	fr.indestructiblePotionMCD = nil
+	fr.onUseTrinkets = nil
 	fr.potionUsed = false
 }
 
-func (dk *DpsDeathknight) getFrostMajorCooldown(actionID core.ActionID) *core.MajorCooldown {
+func (dk *DpsDeathknight) addOnUseTrinketCooldown(actionID core.ActionID) {
+	if dk.Character.HasMajorCooldown(actionID) {
+		majorCd := dk.Character.GetMajorCooldown(actionID)
+		majorCd.ShouldActivate = func(sim *core.Simulation, character *core.Character) bool {
+			return false
+		}
+
+		dk.fr.onUseTrinkets = append(dk.fr.onUseTrinkets, majorCd)
+	}
+}
+
+func (dk *DpsDeathknight) getMajorCooldown(actionID core.ActionID) *core.MajorCooldown {
 	if dk.Character.HasMajorCooldown(actionID) {
 		majorCd := dk.Character.GetMajorCooldown(actionID)
 		majorCd.ShouldActivate = func(sim *core.Simulation, character *core.Character) bool {
@@ -59,22 +74,29 @@ func (dk *DpsDeathknight) setupUnbreakableArmorCooldowns() {
 	fr := &dk.fr
 
 	// hyperspeed accelerators
-	fr.hyperSpeedMCD = dk.getFrostMajorCooldown(core.ActionID{SpellID: 54758})
+	fr.hyperSpeedMCD = dk.getMajorCooldown(core.ActionID{SpellID: 54758})
 
 	// stoneform (dwarf)
-	fr.stoneformMCD = dk.getFrostMajorCooldown(core.ActionID{SpellID: 20594})
+	fr.stoneformMCD = dk.getMajorCooldown(core.ActionID{SpellID: 20594})
 
 	// bloodfury (orc)
-	fr.bloodfuryMCD = dk.getFrostMajorCooldown(core.ActionID{SpellID: 33697})
+	fr.bloodfuryMCD = dk.getMajorCooldown(core.ActionID{SpellID: 33697})
 
 	// berserking (troll)
-	fr.berserkingMCD = dk.getFrostMajorCooldown(core.ActionID{SpellID: 26297})
+	fr.berserkingMCD = dk.getMajorCooldown(core.ActionID{SpellID: 26297})
 
 	// potion of speed
-	fr.potionOfSpeedMCD = dk.getFrostMajorCooldown(core.ActionID{ItemID: 40211})
+	fr.potionOfSpeedMCD = dk.getMajorCooldown(core.ActionID{ItemID: 40211})
 
 	// indestructible potion
-	fr.indestructiblePotionMCD = dk.getFrostMajorCooldown(core.ActionID{ItemID: 40093})
+	fr.indestructiblePotionMCD = dk.getMajorCooldown(core.ActionID{ItemID: 40093})
+
+	// On use trinkets
+	dk.addOnUseTrinketCooldown(core.ActionID{ItemID: 40531}) // Mark of nogganon
+	dk.addOnUseTrinketCooldown(core.ActionID{ItemID: 37166}) // Sphere of Red Dragon's Blood
+	dk.addOnUseTrinketCooldown(core.ActionID{ItemID: 37723}) // Incisor Fragment
+	dk.addOnUseTrinketCooldown(core.ActionID{ItemID: 39257}) // Loatheb's Shadow
+	dk.addOnUseTrinketCooldown(core.ActionID{ItemID: 44014}) // Fezzik's Pocketwatch
 }
 
 func (dk *DpsDeathknight) castMajorCooldown(mcd *core.MajorCooldown, sim *core.Simulation, target *core.Unit) {
@@ -123,6 +145,10 @@ func (dk *DpsDeathknight) castAllMajorCooldowns(sim *core.Simulation) {
 	dk.castMajorCooldown(fr.stoneformMCD, sim, target)
 	dk.castMajorCooldown(fr.bloodfuryMCD, sim, target)
 	dk.castMajorCooldown(fr.berserkingMCD, sim, target)
+
+	for _, trinket := range fr.onUseTrinkets {
+		dk.castMajorCooldown(trinket, sim, target)
+	}
 }
 
 func (dk *DpsDeathknight) RotationActionCallback_UA_Frost(sim *core.Simulation, target *core.Unit, s *deathknight.Sequence) time.Duration {