Morality Shift

Read the oracle text in the right order and the strategy snaps into focus: this is not a recursion spell that reaches into the graveyard, it is a spell that empties the entire library into it. The exchange swaps the two zones wholesale, then the shuffle scrambles whatever was already in your bin back into a library that is now whatever your graveyard used to be. Cast it on an empty graveyard and the effect is brutal and simple: your whole deck goes to the yard at once. That is the point. The payoff sits downstream, in whatever wants a graveyard the size of your remaining deck. Mass reanimation is the obvious one, but the cleaner kill is a library reduced to almost nothing, since dumping fifty-odd cards into the bin leaves you a handful of spells away from decking, the setup that any "win when your library is empty" effect is built to convert. The shuffle clause is the friction: it does not let you choose what survives in the new library, so a build that wants Morality Shift has to make the graveyard the goal rather than a means to a tutor. Seven mana buys no board presence and answers no threat; it does one thing, instantly and irreversibly, and asks whatever you have built around it to justify the cost. A build-around in the strict sense, dead weight without an engine wrapped around it and a payoff waiting on the other side.