No Goblins Allowed :: Theoretical Expansion of Undoing Mana Abilities

Mown wrote:

If I understand the rules correctly (717), you can't undo Deranged Assistant despite it being a mana ability, because it moves objects from a randomized zone. Is there a reason the rules shouldn't be extended to mana abilities that involve an opponent making a decision, or something to that effect?

I'm not sure. can't think of any consequences off the top of my head, but I'd run it by Rules Central before assuming it's safe.

Author:	Mown [ Thu May 12, 2016 6:56 am ]
Post subject:	Theoretical Expansion of Undoing Mana Abilities
razorborne wrote: Mown wrote: If I understand the rules correctly (717), you can't undo Deranged Assistant despite it being a mana ability, because it moves objects from a randomized zone. Is there a reason the rules shouldn't be extended to mana abilities that involve an opponent making a decision, or something to that effect? I'm not sure. can't think of any consequences off the top of my head, but I'd run it by Rules Central before assuming it's safe. So, this story started with me having a terrible idea for a card, and instead of changing the card, deciding that the rules should change instead. : Add , or to your mana pool of an opponent's choice. raz informed me that the current effect creates a lot of undesirable gameplay because of undo rules for casting spells, which I agree with. However, given that the game already specifies certain constraints on what mana abilities can be undone, is there a reason it shouldn't be extended to effects such as the one above, and Rhystic Cave? Are there any disadvantages to prevent undoing mana abilities that involve an opponent making a decision, or reason it wouldn't work at all?

Author:	Nylon [ Thu May 12, 2016 10:20 am ]
Post subject:	Re: Theoretical Expansion of Undoing Mana Abilities
I'd say your card is fine. It's not hard to reverse, so rule 717 doesn't need an exception for it. Also, you don't want to activate it while casting a spell, because that gives the opponent extra information. So you just activate it, opponent chooses a color, then you go on and cast something with your new mana. It's very important to note that rule 717 is called "Handling Illegal actions". It's not "Handling legal actions that I want to reverse because I feel like it". It's also not "Handling illegal actions committed on purpose, also known as cheats". It's there to fix honest mistakes, like when you tap three forests and three mountains to cast Force of Nature and then realize that you can't. Dishonest mistakes are fixed by disqualifying players.

Author:	adeyke [ Thu May 12, 2016 12:41 pm ]
Post subject:	Re: Theoretical Expansion of Undoing Mana Abilities
Rhystic Cave currently has the restriction "Activate this ability only any time you could cast an instant." It would be better to just use that same restriction instead of changing the rule. There are unfortunately already times when you can't predict in advance if your opponent will make your action illegal (e.g. Evangelize + Icefall Regent and another creature with only available), but the fewer cases of that, the better.

No Goblins Allowed http://862838.jrbdt8wd.asia/

Theoretical Expansion of Undoing Mana Abilities http://862838.jrbdt8wd.asia/viewtopic.php?f=56&t=14736	Page 1 of 1

Page 1 of 1	All times are UTC - 6 hours [ DST ]
Powered by phpBB® Forum Software © phpBB Group http://www.phpbb.com/