UngeheuerLich
Legend
Not true, though ...
If you think of the shift as being on the stack, and you play a "reduce damage dealt by target spell to zero, draw a card." .. you can resolve your card, then play "counter target green spell." since the hurricane is still on the stack.
in 4th edition this was not possible, because counterspells were interrupts which could only be played before any instant effects were resolved...
so i would rule no, because the immediate action is triggered by casting that shift, not by beeing on the stack...