If an Omen spell is copied, that copy is also an Omen and is shuffled into its owner’s library as it resolves. Its owner still shuffles their library, but the copy ceases to exist as a state-based action.
Disruptive Stormbrood // Petty Revenge
If an Omen spell has one or more targets and all of those targets are illegal when the spell tries to resolve, it won’t resolve. None of its effects will happen, and it will be put into its owner’s graveyard. It won’t be shuffled into its owner’s library.
If an effect instructs you to choose a card name, you may choose the alternative Omen name. Consider only the alternative characteristics to determine whether that is an appropriate name to choose.
Magic: The Gathering · ™ & © Wizards of the Coast · Illus. Dan Mumford
Card data via Scryfall. Rarix is fan-made; not endorsed by the rights holders.
