During GP Manchester this weekend a question was posed to me that got me thinking

Orginal Question:

Adam attacks with a creature, Natalie blocks that creature with a Daring Thief then uses the Thief to make U using Springleaf Drum to play Triton Tactics on the Thief swapping it for the attacking creature.

Now the question was does the changing of controller of the attacking creature change if the trigger is Generally Detrimental or not. Which raises a bigger question for me, while we don't take game state into account to figure out if a trigger is Generally Detrimental or not but do we asses a trigger like this on how the spell solely on how it will normally be played?

To be clear I am talking about the Triggered Ability of Triton Tactics that applied to Adam's attacking creature which is now controlled by Natalie.

Edited Gareth Tanner (June 3, 2014 09:28:44 AM)

Even though we don't give a Warning if a Missed Trigger isn't generally considered detrimental, it's still a Missed Trigger, and intentionally forgetting triggers is still a Problem. However, the game state should only influence our investigation, not our determination of generally detrimental.

The concept of “generally detrimental” precludes the possibility (probability?) that, if you dig deep enough into the corners, you can find a detrimental instance of even the kindest, gentlest triggers. You could probably create a corner case where one of those “you win the game” triggers is detrimental (but no, I don't want to hear about it!).

d:^D