Incorrect interaction between Niv-Mizzet, Supreme and Split/Adventurer Card
[Niv-Mizzet, Supreme] applies [Jump-Start] to cards that are in the graveyard and become instants or sorceries of exactly two colors when moved onto the stack.
This interpretation is a strict interpretation of the Comprehensive Rule and is justified by the precedent of [Lier, Disciple of the Drowned].
However, in the Arena, whether or not [Jump-Start] is granted and whether it can be cast is determined by referring to the property in the graveyard, not the property on the stack.
This bug affects split cards and adventurer cards.
Furthermore, despite having similar properties, [Oakhame Ranger] and [Kellan, Inquisitive Prodigy] interact differently with [Niv-Mizzet, Supreme].
This is a puzzling bug, but should be fixed along with the previous ones.
I discovered these bugs while using a deck with [Niv-Mizzet, Supreme] as the commander in Brawl, and verified it in a bot match. Please check the attached image.
This article was created using the translation function. Please excuse any minor mistranslations.
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sparksfamilyvalues#95319 commented
Just to correct the below, Lier and Niv-Mizzet can give Adventures flashback/jump-start. This is due to the steps of casting a spell
1. Declare the intent to cast a spell
2. Move the spell to the stack (from the relevant zone, in this case, the graveyard)
3. There is a legality check done. Can you legally cast the spell from the zone you moved it from? Can you declare legal targets for all targets, if any? Can you pay all the casting costs of the card?
If not, the game rewinds the action and returns the spell to its original zone.This is how Lier is able to function. In your image, Kellan’s Adventure correctly has Jump-start.
As for why Oakhame Ranger doesn’t, that I don’t understand.
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Rezzahan#77802 commented
Niv-Mizzet looks at he card in the graveyard to determine wether he should give jump-start to it or not. That is strictly how the card is worded. What that card in the graveyard would look like on the stack is not relevant to Niv-Mizzet granting jump-start to the card. For that its colors in the graveyard are important, and it being an instant or sorcery in that zone. In the graveyard split cards are all of the colors of the two halves combined, that's why Cease//Desist doesn't get jump-start (it has 3 colors not just 2), and that's why Consign//Oblivion does get jump-start (it has exactly 2 colors, despite each half being monocolored).
Neither Oakhame Ranger nor Kellan should get jump-start from Niv-Mizzet when in the graveyard. Because there those are only creature cards, the adventure characteristics are treated as nonexistent.
(715.4. In every zone except the stack, and while on the stack not as an Adventure, an adventurer card
has only its normal characteristics.)So how do the two adventurer cards interact differently with Niv-Mizzet? Both shouldn't interact with him at all.