Collectible Card Game Headquarters

Describe the Bug:
Smelling like some kind of engine limitation, Wheel of Sun and Moon enchanting Energy Field 's controller doesn't prevent the latter from being sacrificed when said controller casts an instant or sorcery, or when one of his/her permanents or a card from the top of his/her library is put into his/her graveyard.

Which card did behave improperly ?
Wheel of Sun and Moon

Which update are you using?(date,name)Which type(Duel,Gauntlet,Sealed Deck)
CIA v2, Duel

What exactly should be the correct behavior/interaction ?
If a card would be put into the graveyard of a player enchanted by Wheel of Sun and Moon from anywhere, instead that card is revealed and put on the bottom of that player's library. Hence Energy Field would stay on the battlefield.

Are any other cards possibly affected by this bug ?
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They were able to fix Helm of Obedience and Rest in Peace / Leyline of the Void. Though it may be that combos like that need a fix on a per case basis.

In your savegame nothing is being effected by Wheel of Sun and Moon . Instants, creatures, everything is going into the gy like normal. But I don't see an Energy Field in sight.

^ You're right, BAgate. Must have gotten it from casting Time Spiral and saved the game the same turn, then just checked whether the savegame loaded without checking the actual board state. Thanks for the heads up!

Anyways, I replaced the savegame with one demonstrating the issue. Wheel of Sun and Moon seemingly works in that game, but the interaction with Energy Field is as described in the report.

Thanks for the update. Instants and Sorceries are going straight to your gy without regard for the Wheel of Sun and Moon. Creatures and enchantments go to your library as they should, but still trigger Energy Field 's sacrifice.

I tested this and in a completely clean working game, Wheel of Sun and Moon does not prevent everything from going to the graveyard.

For example:
Discarding cards end of turn or discarding cards to a spell effect go to graveyard. (Incorrect)
Casting an instant or sorcery goes to graveyard (Incorrect)
Sacrificed/destroyed permanents are shuffled into library (Correct)

It actually didn't prevent anything from going to the graveyard, hence this bug; it just managed to remove some things from the graveyard after the fact.

It and all the other "whenever a card [is/would be] put into [someone's] graveyard from [anywhere/your library]" replacement and triggered effects that I could find were rewritten are working correctly in dev now; fallout from Lazav, Dimir Mastermind.