diff --git a/libs/gw2_analytics/src/gw2_analytics/rotation.py b/libs/gw2_analytics/src/gw2_analytics/rotation.py
index f4c018dd..52429ee2 100644
--- a/libs/gw2_analytics/src/gw2_analytics/rotation.py
+++ b/libs/gw2_analytics/src/gw2_analytics/rotation.py
@@ -974,45 +974,11 @@ def add_instant(source: int, skill_id: int, time_ms: int, icd: int = 50) -> None
             )
 
             if has_unholy_burst_in_fight:
-                # EI uses EffectCastFinder: only emit when UnholyBurst effect is present
-                # with DesertShroud and related hit checks
-                unholy_burst_nearby = any(
-                    isinstance(other, EffectEvent)
-                    and other.guid == "C4E8DD3234E0C647993857940ED79AC1"
-                    and other.source_agent_id == event.source_agent_id
-                    and abs(other.time_ms - event.time_ms) < 100
-                    for other in nearby_events(event.time_ms, 100)
-                )
-                if not unholy_burst_nearby:
-                    continue
-
-                # DesertShroud check: no DesertShroud buff removal within 50ms
-                desert_shroud_removal = any(
-                    isinstance(other, BoonApplyEvent)
-                    and other.kind == "remove_all"
-                    and other.skill_id == 40052  # DesertShroudBuff
-                    and other.source_agent_id == event.source_agent_id
-                    and abs(other.time_ms - event.time_ms) < 50
-                    for other in nearby_events(event.time_ms, 50)
-                )
-                if desert_shroud_removal:
-                    continue
-
-                # Related hit check: no UnholyBurst hit from same caster within 10ms
-                related_hit = any(
-                    isinstance(other, DamageEvent)
-                    and other.source_agent_id == event.source_agent_id
-                    and other.skill_id == 38767  # UnholyBurst
-                    and abs(other.time_ms - event.time_ms) < 10
-                    for other in nearby_events(event.time_ms, 10)
-                )
-                if related_hit:
-                    continue
-
-                add_instant(event.source_agent_id, event.skill_id, event.time_ms)
-            else:
-                # No UnholyBurst effect data in fight: use DamageCastFinder
-                add_instant(event.source_agent_id, event.skill_id, event.time_ms)
+                # EI disables DamageCastFinder when effect data exists (UsingDisableWithEffectData)
+                # Let the EffectCastFinder handle it via UnholyBurst effect events
+                continue
+            # No UnholyBurst effect data in fight: use DamageCastFinder
+            add_instant(event.source_agent_id, event.skill_id, event.time_ms)
         elif isinstance(event, DamageEvent) and event.skill_id in _DAMAGE_CASTS:
             add_instant(
                 event.source_agent_id,