if i play two regressions does my opponent's fighters printed defense reduce to 0?

Only if your opponent's fighter's printed DEF was 0 to begin with.

Regression reduces your opponent's fighter's printed DEF by half, rounded up. Using Kenko as an example, one Regression would put Kenko's base DEf at 2501 (5001/2 = 2500.5, then rounding up.) Playing a second Regression would (in theory - see below) reduce the base DEF to 1251 (2501/2 = 1250.5, then rounding up.)

The "in theory" note, explained: In other games (read, DBZ) Score has said you cannot stack multipliers - you cannot triple an attack value that has already been doubled, for example. You can stack addition modifiers, but not multiplication modifiers. I know, that's another game and it doesn't necessarily apply here. As the clarification doesn't exist, I'm not sure if it works that way. The other issue is that Regression reduces the printed DEF value by half, but doesn't say if it "reprints" the new value or if it acts like a modifier. If it acts like a modifier and doesn't "reprint," then playing a second Regression would be useless, as you'd be re-reducing your opponent's original printed DEF value for no reason.

The only way I can see that playing two copies of Regression could modify a DEF to 0 that didn't already start at 0 would be if each Regression created a floating effect of "Your opponent's printed DEF gains "- X/2," where X=Printed DEF"...however, if that were the case, it would've been worded as such, instead of simply "base DEF is reduced by half."

if u play 2 and they have no cards to increes def they go 2 0 def

kingofewok: no offense, but how do you figure? How exactly can you cut something in half and end up with 0 unless you started with 0 to begin with? Regression doesn't create an addition modifier, it creates a multiplication modifier. "Your opponent's fighter's printed DEF is reduced by half, rounded up..." is nowhere close to "Your opponent's fighter's DEF gains '-(X/2)' where X=printed DEF..." like you're basing on.

1/2 = 0.5 ... 0.5/2 = 0.25 ... 0.25/2 = 0.125 ... 0.125/2 = 0.0625 ... and so on. You'll never hit 0, especially with the "rounded up" clause in the effect...

it is PRINTED DEF if u use 2 that means if its 5000 use it twice it's def is 2500 but the PRINTED DEF is 5000 still i didnt fail base math u failed to read the card and dont understand the card

Heh, I don't understand the card, eh? Ok. Whatever makes you happy, I guess. For the record, I questioned your math and your reasoning (which you, just for the record, did not provide in your original post,) instead of questioning your understanding of card text.

If I cut a pie in half, then cut that same pie in half, does that give me 0 pie?

The true question here is, does Regression reprint the printed DEF? I'll admit, I don't know if Regression reprints the DEF. If you'll notice, I admitted that in my original post.

If Regression reprints the printed DEF, then you're not going to hit 0. The only number you can divide by 2 and get 0 is 0. Anything else will give you a fraction, which Regression specifically rounds up.

If Regression does not reprint the printed DEF, then using two Regression will do this:
- Regression #1 reduces printed DEF by half (5000 down to 2500)
- Regression #2 would then reduce the printed DEF (still 5000) by half.
In essence, you'll have doubled your work and your cost for no gain. Regression doesn't subtract the reduced value - it divides by 2. The ONLY way you can get 0 is if Regression subtracts half of the printed DEF value with each use. You'll note, I also acknowledged this in my original post.

I will admit, my comments about "failing basic math" were out of line...

Kingofewok,you have no idea what your talking about do you? It is impossible to hit 0 with that card. It just keeps cutting it in half.

king of ewok, u cant play 2 regressions in a row, becaus it would do nohting, u wou be doing the same thing twice, it says u divide the p0rinted fefence by half, and if u divide the printed defence by half and then u play it again and u divdide the printed defence in half, it will stay the same as what trhe first regression did because ti says pritnted defence, and u cant divide the printed defence by the same thing twice because the second tmie u wouldnt be dividng the second defence

Indeed. If you play 2 regressions against an opponent with 5000 def the end result is 2500. The PRINTED DEFENSE will always be 5000. If you use a regression their defense is now 2500. Now you use another one and look at the card, the PRINTED DEFENSE on the card is still 5000.

I never thought to see some one arguing with Ravend for a ruling =_=... If i would have to decide betwen him or I for giving the best ruling I would say Ravend since his explications are way better then mine.

If you are still arguing about the ruling after Stryyder even anwser it, then you should try to remember all of the rules from the start...

His EXPLICATIONS are rather good aren't they? I would trust his EXPLICATIONS anyday.

gos i gust tryed to point out that it was printed def u giy dont have to ack like jerks im surrprize at u Stryyder the most

no one acted like a jackass except for you, all the ppl tryed 2 help u and all u do is turn around and complain

its exact wording is "Your opponent's fighter's printed Defense value is reduced by half (rounded up) until your next Draw Step." It says that the printed defense is lowered by half so wouldnt that mean that there is a new printed defense? I think that would mean that the second one would be lowering the new printed defense by half there for making it 1/4 of the original printed defense.

King - I wasn't trying to be a jerk I was simply stating what the card says.

Stephen - Regression does say cut the printed defense in half, but it does not stay in play as an upkeeping effect. As soon as you play the second Regression, you re-check the conditions. Since the number printed on the card is still 5000 then that is the printed defense.