Interaction of Feather and Karen's Temporal Sundering
A newly (officially) spoiled card, Feather, the Redeemed (Legendary Creature – Angel) reads: “Whenever you cast an instant or sorcery spell that targets a creature you control, exile that card instead of putting it into your graveyard as it resolves. If you do, put it in your hand at the beginning of the next end step.”
If AP controls Feather and casts Karn's Temporal Sundering (KTS) targeting their own creature (KTS reads: “Target player takes an extra turn after this one. Return up to one target nonland permanent to its owner's hand. Exile Karn's Temporal Sundering.” )
Does KTS get returned to APs hand at the beginning of the next end step?
My initial thought is no, because the exile clause on KTS isn't a replacement effect, so the replacement effect on Feather wouldn't trigger since the spell would never head to the graveyard.
614.7. If a replacement effect would replace an event, but that event never happens, the replacement effect simply doesn't do anything.
Is this an accurate interpretation?
Thanks, Steve