I activate a figure and play Urgency - special action - Gain movement points equal to your speed + 2.
My opponent plays Negation.
Do I only have 1 action left, or do I still have 2 actions?
I feel like this is different enough from the question about Take Initiative that it is worth asking, because in this case you're using a special action to play the card.
I could see the answer going either way, but I'm leaning towards Negation canceling everything about the card, including the special action usage.