I believe I had a similar issue with Taigam today.
My opponent had a Taigam and six mana in play. They tapped five mana to play Narset's Rebuke, I countered with a Spectral Denial, x = 3, but when the original card was countered, the copied copied was not exiled and instead immediately resolved.
I believe I had a similar issue with Taigam today.
My opponent had a Taigam and six mana in play. They tapped five mana to play Narset's Rebuke, I countered with a Spectral Denial, x = 3, but when the original card was countered, the copied copied was not exiled and instead immediately resolved.