Talk:Diabride, Natural Pyroxene/Rulings/@comment-25064433-20150307002037/@comment-25316201-20150308180832

This is according to a official general ruling which declares how and when a SIGNI's effect may activate, which I dubbed "place of trigger and place of activation." It primarily pertains to SIGNI effects which only activate when certain conditions are met, such as Diabride, Natural Pyroxene's second

In this case, the trigger requirement of Diabride's second is "When one of your  or  SIGNI is affected by the effects of your opponent's ARTS..." The moment of being affected by your opponent's ARTS, Diabride triggers her second  to activate after all previous effects have resolved.

Normally, most effects quickly cause triggers, resolve, and activate in the same place with little to no consequences because no additional general rules are involved that cause the field conditions to change. This is the usual case when Diabride is directly banished by your opponent's ARTS, such as by Banishing. You are correct in your understanding of this.

However, ARTS such as Eternal Punish and Ancient Gate do not cause a SIGNI to be banished by the ARTS alone, but usually by the general "0 power rule" which most players should be familiar.

In this case, Diabride has triggered her second due to being affected by an opponent's ARTS while she is in the SIGNI Zone. However, after the ARTS has resolved, the gameplay area must necessarily be updated to hold to official general rules such as "0 power rule." As such, Diabride is immediately banished to the Ener Zone.

At this point, Diabride attempts to activate her second. However, her place of trigger (SIGNI Zone) differs from her place of activation (Ener Zone). Diabride misfires.

It should be understood that in general, after any effect has finished its resolution, this kind of general rules field update takes place. This update is the short answer to why Diabride misfires.