Fuse

[Bman0121]

Okay with the new spoiler the split cards say fuse where you can cast both but dont the old split cards do the same thing cant you cast both parts of the spell at once? Like  {Fire // Ice}

[Mikefrompluto]

No. Its either/or. Otherwise fuse would be a redundant mechanic.


"708.2. In every zone except the stack, split cards have two sets of characteristics and two converted mana costs. As long as a split card is a spell on the stack, only the characteristics of the half being cast exist. The other half's characteristics are treated as though they didn't exist.

708.2a If a player casts a split card, that player chooses which half of that split card he or she is casting before putting it onto the stack. Only the half that is being cast is considered to be put onto the stack."

RESOLVED

[scarsabrex]

On a further note is fusing considered an additional or alternative cost? Matters for cards like {isochron scepter} and cascade.

[Keyeto]

On a further note is fusing considered an additional or alternative cost? Matters for cards like {isochron scepter} and cascade.

There's no official rulings yet, but an article about the mechanics has explained it as being treated as one spell, that has the characteristics of both halves:


Quote:
Any time you could cast a split card with fuse, you can choose one half and cast it, just like any other split card. And if you're casting it from your hand (as you usually are), you have the additional option to cast both halves as a single spell by paying their combined cost. Instructions on the left half are processed first, then the instructions on the right, and targets for the two halves are chosen separately.

and then:

If you cast both halves of Toil & Trouble, it's a black and red spell. That means it's a multicolored spell, which might matter for cards such as Pyroconvergence. (Some split cards in the set are multicolored on both halves, so they're multicolored spells whether you fuse them or not.)

[MementoMori]

You can only fuse if you're casting it from your hand, so it doesn't actually apply to, say,  {Isochron Scepter}.

[scarsabrex]

You can only fuse if you're casting it from your hand, so it doesn't actually apply to, say,  {Isochron Scepter}.

Fair enough then what about {omniscience}