Epochalyptik says... Accepted answer #2
@GearNoir: Slightly incorrect. Blight's ability is a triggered ability. It uses the stack, and you can respond to it. Only the mana ability of the land itself is instantaneous.
Regardless, the mana is still produced. Destroying the land (whether simultaneously or afterward) doesn't undo the mana ability.
GearNoir says... #1
Tapping lands for mana does not use the stack, so the land both floats a mana and is destroyed simultaneously.
December 20, 2016 2:31 p.m.