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 Magic: The Gathering Rules Q&A Divide By 0
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 4 years ago  ::  Mar 31, 2009 - 8:43PM #1 StackingZerglings Date Joined: Dec 18, 2007 Posts: 60 I was wondering if there are any ways to cause a divide by zero error in magic. If so, what would happen?Aside from the obvious... Quick Reply Cancel Quote message in reply? 4 years ago  ::  Mar 31, 2009 - 8:46PM #2 NereusRen Date Joined: Jul 22, 2003 Posts: 311 Nothing too exciting... as an undefined quantity, the result would be treated as zero. CR]104.2. If anything needs to use a number that can't be determined, either as a result or in a calculation, it uses 0 instead.[/quote wrote:104.2. If anything needs to use a number that can't be determined, either as a result or in a calculation, it uses 0 instead. Quick Reply Cancel Quote message in reply? 4 years ago  ::  Mar 31, 2009 - 8:50PM #3 JohnnyComeLately Date Joined: Oct 25, 2008 Posts: 2,637 I guess you could make the 3s in 0s with multiple , but Un-sets aren't covered by regular rules, so I have no idea what would happen.The universe would probably collapse. Quick Reply Cancel Quote message in reply? 4 years ago  ::  Mar 31, 2009 - 9:03PM #4 inori Date Joined: Feb 28, 2005 Posts: 3,564 When playing , it's possible to choose zero target creatures ("any number" includes zero). You're thus dividing X damage (X can still be nonzero if you just like wasting mana) among zero target creatures. Nothing special happens even though Fireball will try to deal X / 0 = {undefined} damage to each target, since you don't have any actual targets to deal {undefined} damage to anyway. Quick Reply Cancel Quote message in reply? 4 years ago  ::  Apr 01, 2009 - 12:21AM #5 UsaSatsui Date Joined: Aug 15, 2008 Posts: 302 inori wrote:When playing , it's possible to choose zero target creatures ("any number" includes zero). You're thus dividing X damage (X can still be nonzero if you just like wasting mana) among zero target creatures. Nothing special happens even though Fireball will try to deal X / 0 = {undefined} damage to each target, since you don't have any actual targets to deal {undefined} damage to anyway....I don't think that works. "Any number of targets" implies you need at least one.Besides, if you choose 0, you have no targets...and the spell requires them, therefore you can't legally play the spell. Quick Reply Cancel Quote message in reply? 4 years ago  ::  Apr 01, 2009 - 12:37AM #6 teliot Date Joined: Dec 14, 2007 Posts: 2,718 I guess if you play when your opponent has no creatures? I think I know what would happen. Namely, nothing would happen... Quick Reply Cancel Quote message in reply? 4 years ago  ::  Apr 01, 2009 - 2:02AM #7 jeff-heikkinen ****(ytic) Date Joined: Aug 13, 2001 Posts: 8,353 UsaSatsui wrote:...I don't think that works. "Any number of targets" implies you need at least one.It "implies" nothing of the sort, and says the opposite straight out. "Any number" means "any number", not something else.Besides, if you choose 0, you have no targets...and the spell requires them, therefore you can't legally play the spell.A spell can't be played without naming a full complement of legal targets, but I don't see how you conclude from that that a zero-target Fireball is unplayable (any more than a Wrath or any other spell with no targets). A spell requires the number of targets it says it requires, not some other number. Jeff HeikkinenDCI Rules Advisor since Dec 25, 2011 Quick Reply Cancel Quote message in reply? 4 years ago  ::  Apr 01, 2009 - 7:17AM #8 Guest128241469 Date Joined: Apr 1, 2009 Posts: 13 ii Quick Reply Cancel Quote message in reply? 4 years ago  ::  Apr 01, 2009 - 7:18AM #9 Guest128241469 Date Joined: Apr 1, 2009 Posts: 13 jeff-heikkinen wrote:It "implies" nothing of the sort, and says the opposite straight out. "Any number" means "any number", not something else.A spell can't be played without naming a full complement of legal targets, but I don't see how you conclude from that that a zero-target Fireball is unplayable (any more than a Wrath or any other spell with no targets). A spell requires the number of targets it says it requires, not some other number.Are you serious. If the spell says target anywhere it needs at least 1 target, therefore you really can't play a fireball for 0 with no target/s. You can play a fireball for 0 all day long. You have to have at least one target to even announce it. Am I going crazy here? Quick Reply Cancel Quote message in reply? 4 years ago  ::  Apr 01, 2009 - 7:27AM #10 HendrikHaese Date Joined: Jun 19, 2008 Posts: 1,295 Guest128241469 wrote:Are you serious. If the spell says target anywhere it needs at least 1 target, therefore you really can't play a fireball for 0 with no target/s. You can play a fireball for 0 all day long. You have to have at least one target to even announce it. Am I going crazy here?We are serious. Look at and the appropriate ruling:10/1/2008 The first ability can target zero, one, or two artifacts. You may play it with no targets just to put a loyalty counter on Tezzeret.The matter at hand is quite similar. "Any number of targets" means exactly that. Any number. That number may be zero. DCI L2 Judge"When nothing remains, everything is equally possible." - Quick Reply Cancel Quote message in reply?
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 Magic: The Gathering Rules Q&A Divide By 0
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