These split cards are very interesting. Each half represents a guild, and the combined colors are a shard. For Hit // Run, its Jund = Rakdos + Gruul.
For Rise // Fall its Grixis = Dimir + Rakdos
For Pure // Simple its Naya = Gruul + Selesnya.
For Supply // Demand its Bant = Selesnya + Azorious.
Crime and Punishment is not one of the usual Shards, but its Orzhov and Golgari.
And neither is Bound // Determined, which is Golgari and Simic.
Same goes for Research // Development, which is Simic and Izzet.