- FIXME: There is a strange bug with ETB replacement effects not being recreated under certain specific circumstances, for example, when an exiled-face-down card is returned to hand via AF ChangeZone: e.g. The Rack obtained via Necropotence does not work because its ETB effect ends up somehow being not set up correctly.

- For now, introduced a local change specific to Necropotence, but I think this is indicative of a bigger issue in the underlying code. If anyone knows why this is happening and where this is best fixed, please assist.

forge-gui/res/cardsfolder/n/necropotence.txt

@@ -6,7 +6,7 @@ T:Mode$ Discarded | ValidCard$ Card.YouCtrl | TriggerZones$ Battlefield | Execut
 SVar:TrigChange:AB$ChangeZone | Cost$ 0 | Defined$ TriggeredCard | Origin$ Graveyard | Destination$ Exile
 A:AB$ ChangeZone | Cost$ PayLife<1> | Defined$ TopOfLibrary | Origin$ Library | Destination$ Exile | ExileFaceDown$ True | RememberChanged$ True | SubAbility$ DelayedReturn | AILogic$ Necropotence | AILifeThreshold$ 1 | SpellDescription$ Exile the top card of your library face down. Put that card into your hand at the beginning of your next end step.
 SVar:DelayedReturn:DB$ DelayedTrigger | Mode$ Phase | Phase$ End of Turn | ValidPlayer$ You | Execute$ TrigReturn | RememberObjects$ Remembered | TriggerDescription$ Put the exiled card into your hand. | SubAbility$ DBCleanup
-SVar:TrigReturn:DB$ ChangeZone | Origin$ Exile | Destination$ Hand | Defined$ DelayTriggerRemembered
+SVar:TrigReturn:DB$ ChangeZone | Origin$ Exile | Destination$ Hand | ResetETBKeywords$ True | Defined$ DelayTriggerRemembered
 SVar:DBCleanup:DB$ Cleanup | ClearRemembered$ True
 SVar:AICastPreference:NeverCastIfLifeBelow$ 7
 SVar:RemRandomDeck:True