Twisted Fate vs. Nocturne.
Paranoia (Ultimate): Nocturne reduces the sight radius of all enemy champions and removes their ally vision in the process. He can then launch himself at a nearby enemy champion.
Destiny (Ultimate): Twisted Fate reveals all enemy champions (including stealthed champions). While Destiny is active, Twisted Fate can use Gate.
When both spells are active (regardless of casting order), Nocturne's Paranoia has precedence over Twisted Fate's Destiny. Nocturne only reduces the sight radius of a champion, yet Twisted Fate completely loses his Destiny vision.
(Why is Destiny considered ally vision, when its his vision?)