Quote from: Kaylesh on July 09, 2016, 07:43:10 AM
Yeah, interaction of replacement effects is pretty complex, as it works quite different from triggered effects on the stack.
Can't reproduce an example for a controller-less object in this instance. In the case of damage, the source pretty much always has one.
Plenty of times. An object only has a controller when it is on the stack or in play. In any other zone, an object has no controller, only an owner.
So if, for example, two replacement effects were trying to get you to discard a card for different reasons, then the owner of that card (i.e. you) makes the decision. The card in your hand has no controller.
^^ from a mtg salvation ruling discussing 419.9a