I was ruling this wrong too. Here is my take on it (though I'm too late for any stickers
):
Destruction: A spell is destroyed either by receiving damage equal or greater to its life points or by some effect which specifically destroys it. A destroyed spell is placed in its owners discard pile and then revealed, regardless of any effect stating otherwise (such as seeking dispel). A destroyed enchantment can activate its on-destruction effect if applicable.
"On-Destruction" effects: Upon destruction, a spell enters the discard pile then activates its on-destruction effect. Countered and obliterated spells cannot activate their on-destruction effects. These on-destruction effects act as if all spells and markers which were just destroyed or removed are still attached to their previous target(s) and are still in their previous zone(s).
Problems:
1) Why does [mwcard=DNE02] Rise Again's[/mwcard] on destruction effect only occur when revealed, but [mwcard=MW1E10] Decoy's[/mwcard] on destruction effect can happen when unrevealed?
Problem example: during the upkeep phase you don't pay upkeep on a creature and it is destroyed. Rise again's controller never gets a chance to reveal the enchantment, so no zombie is created.
2) Also, on-destruction effects occur from the discard pile, but spells and tokens are no longer attached in the discard pile, so how can rise again or eternal servant function?
3) Countered spells are listed as DESTROYED in the codex(but listed as discarded in the 3rd edition rulebook), but the rules supplement states "An object can only be destroyed from play." So a countered spell enters play but its on-destruction effect does not?
4) Revealing spells in the discard pile: [mwcard=MW1I24] Seeking Dispel[/mwcard] states specifically that the spell cannot be revealed, but once it enters the discard pile, it is revealed.
Example: when Decoy is [mwcard=MW1E29] Nullified[/mwcard] it is destroyed, but does not get its on-destruction effect.
What I would change(in order of helpfulness):a) Countered spells are discarded rather than destroyed
b) "On-destruction" effects occur immediately before going to the discard pile so that all attached effects are still attached and so [mwcard=DNC09] Plague Zombie[/mwcard] clearly rots his zone and Rise Again makes a zombie of its attached creature.
c) The rules would be a lot simpler if Decoy just got an errata to say its effect worked even while hidden. Decoy is the only enchantment in the game which does something while remaining hidden. Rise again is not meant to work while hidden, but rule changes to allow for decoy might effect rise again.
d) A rule stating that the ondestruction effects of a hidden enchantment still occur(rise again and decoy). This is weird because until now, the specific text on hidden enchantments had no effect.
e) Different language for showing you the face of a card and Revealing an enchantment. especially for the discard pile.