FGangel: From what I know it is only restricted in vintage. Otherwise, it is legal in all format. Look:
https://gatherer.wizards.com/Pages/Card/Printings.aspx?multiverseid=2497 Granuble: Appreciate the thought, but considering the fact that my mana distribution in lands perfectly matches the cost of my cards and the fact I have 8 split creatures I can pull out in the first turn. I don't think I need the split land. I actually don't like those that much, unless I play a really unbalance 2 colors deck, 3 or more. I once throught about replacing the vapor snags by
Blustersquall in fact. For one, it taps a creature and it has
overload for 4, but the winter flames cost too much for what it does in my opinion. I rather have a lot of low converted cost spells to buff my creatures and trigger the effects.