My friend and I had a small disagreement about this very topic and I look to the ufs community to help open both our eyes to some different points of view. Negation is defined as the opposite absence of something regarded as actual, positive, or affirmation. A denial. Nullification is defined as a refusal or action of a state of impeding or attempting to prevent the chosen operation.
Now I really like the way things are with the current use of nullification over strait negation. I give my attack ten damage and you reduce it by ten, this works for me. However, my friend what cards like yoga mastery to be made or return,(which just says no) this is a problem for me. What are your thoughts?