Forum:Monsters with ATK/DEF value of "?" vs Effect negation

New question that's been bugging me for a bit. It involves monsters with ATK/DEF values noted with a "?". Let's say, "Montage Dragon" had an ATK of 3000, then the opponent uses a card on it like "Breakthrough Skill", "Skill Drain", or another card with effect negation abilities. Would that reduce "Montage Dragon's" ATK down to zero? I'm guessing yes, as its ability determines its power, so negating it would remove its ATK. And, for that matter, what is the value of "?" when in the hand or on the field if the conditions are not met/negated? Would that also be zero? The only idea I can come up with is "Slifer the Sky Dragon", as with no cards in the hand, its ATK would be zero, as the anime portrayed (though in that Slifer's case, its stats were printed as X000 and not ?). I just want to know as I'm not sure what kind of damage would be dealt if I negated the effects a card like "Montage Dragon". Thanks in advance. Zero Blade Tiger (talk • contribs) 01:05, June 1, 2015 (UTC)