I revived a Sphinx of the Second Sun with From the Catacombs. My Sphinx of the Second Sun was exiled when returned to hand by Cyclonic Rift despite me moving the finality counter off with Nesting Grounds.
#Finality Counters Effect Persisting.
timid sand
alpine pine
[[From the Catacombs]]
sturdy pineBOT
Sorcery
Put target creature card from a graveyard onto the battlefield under your control with a corpse counter on it. You take the initiative. If that creature would leave the battlefield, exile it instead of putting it anywhere else.
Escape—
, Exile five other cards from your graveyard. (You may cast this card from your graveyard for its escape cost.)
alpine pine
where's the finality counter?
honest adder
first ruling:
The corpse counter is only to help remind you which creatures will be exiled if they would leave the battlefield. If you somehow remove a corpse counter from a creature that was put onto the battlefield this way, the replacement effect that will exile it continues to apply. Similarly, moving the corpse counter onto another creature has no effect on that creature; the replacement effect will continue to apply to the original creature.
timid sand
I may have used a different card 🤦