I don’t know of any game that has something like that, to be honest. In games where triggers are actually managed to some degree, the timing of them is codified but not actually “interrupted.” I suspect that the distinction is less semantic than it is a snub at a more comprehensive ruleset, though to what end I’m not so sure.

I’m still nonplussed by the absence of major portions of the rulebook, considering we’ve had one since at least August - to say nothing of a designer who’s been doing this for what, over 25 years now?

On 11/24/2018 at 10:20 AM, Ebucklin said:

The ability to purge must interupt by nature. This is a static replacemnt effect. It replaces the effect of resolving an action with another action. It doesnt say after a creature is sent to discard purge. It says when it is sent purge instead. Instead is the key word here. This requires you to replace the discard effect with purge before it finishes resolving. Further the rules state that the discard piles order must be maintained which means it is on the active player to make a game relevant decision or the ording in which cards go to discard so that is not happening simultaneously. Remember it is not replacing the destroy effect it is replacing the way the card enters the discard pile which does have a player decided order. This definitely needs official clarification as the rules are not clear on how to interpret this. Everything that has been said here makes assumptions about what the rules are implying.

Somehow didn't see this post till now and didn't get a notification I'd be quoted until now.
So that's all fine and dandy but how exactly is it doing this when it's destroyed? It's a constant effect and is destroyed at the same moment every creature is and thus by the rules of constant effects cannot occur.