- Get Niv-Mizzet, Supreme on board with an Eidolon in hand to enable infinite Jump-Start which will double up all our interaction, draw and tutor spells.
- Get a combination of storm enablers on board: Fallaji Wayfarer and Jeskai Ascendancy OR Guildpact Paragon, Widespread Thieving and Storm-Kiln Artist for examples.
- Storm through deck while casting extra land effects to place as many Gates in to play as possible.
- Activate Maze's End for the win.
- Alternatively, punch opponents to death using Niv-Mizzet, Supreme with Basilisk Gate OR a swarm of tokens.
There is one particular oddity to Niv-Mizzet, Supreme applying to split cards. When checking casting legality, split cards ignore one half when you declare casting. This means that even though a card like Wear // Tear is a Boros card in all zones besides the stack, Wear and Tear separately are red and white when cast, which makes them illegal recipients of Niv-Mizzet, Supreme's Jump-Start. This also means that Supply // Demand can be cast from the graveyard using Jump-Start despite being Bant in all zones besides the stack. This is more intuitive and obvious when you consider how Lier, Disciple of the Drowned interacts with Adventure cards, allowing you to cast the Adventure part from the graveyard while ignoring the creature half. Here are the rules in question:
Here is the fully extended deck list, with 23 cuts needing to be made:601.3e Some rules and effects state that an alternative set of characteristics or a subset of characteristics are considered to determine if a card or copy of a card is legal to cast. These alternative characteristics replace the object's characteristics for this determination. Continuous effects that would apply to that object once it has those characteristics are also considered.
709.3. A player chooses which half of a split card they are casting before putting it onto the stack.
709.3a Only the chosen half is evaluated to see if it can be cast. Only that half is considered to be put onto the stack.
Decklist
Approximate Total Cost:
Some things to keep in mind when evaluating cuts are which things are tutorable, which cards are versatile tool box effects to Jump-Start, and which things will conflict with Niv-Mizzet's 5 CMC. Most tutors are going to be for creatures, but there are some more open ended ones: Ringsight, Supply // Demand, Lim-Dûl's Vault, Bring to Light and Perplex are all able to get things that aren't creatures. Some other notes: Casting a board wipe and then putting Niv-Mizzet on board makes opponents nervous to extend, this effect is also applied to any Counterspell equivalents you have in the graveyard. Both Battle cards can be flipped by Niv-Mizzet connecting once, are insanely powerful effects, and are "stored" for later in their Battle half so you can flip them on a later turn when you're ready to go off.
Here is a trimmed list of cards that I'm thinking about cutting:
Decklist
Approximate Total Cost:
Feel free to ask any questions about card inclusion / exclusion. I also wouldn't mind hearing recommendations of cards I may have overlooked. A couple cards high on my cut list are: Exalted Flamer of Tzeentch, Congregation at Dawn and Young Pyromancer. Flamer is once each of our turns, which is limited. Congregation is 3 CMC and eats our next draw. Pyromancer makes small red tokens, which we need the least of.