Mana abilities don't go onto the stack and are resolved immediately. If my opponent tried to play Shock (deal 2 damage) to Maraleaf Pixie, would I be able to use its mana ability in response? (Tap: add G or U).
There's a lot on forums about the other way around. If I initially tapped Maraleaf Pixie, and my opponent tried to kill it, they would not be able to because the mana ability resolves immediately.