Flesh // Blood

Some split cards with fuse have two monocolor halves of different colors. If such a card is cast as a fused split spell, the resulting spell is multicolored. If only one half is cast, the spell is the color of that half. While not on the stack, such a card is multicolored.

If you cast Flesh // Blood as a fused split card, the +1/+1 counters will have been placed before the amount of damage is determined.

If a player names a card, the player may name either half of a split card, but not both. A split card has the chosen name if one of its two names matches the chosen name.

As Flesh is resolving, if the creature is an illegal target but the creature card is still a legal target, the creature card will be exiled but no counters will be put onto the creature. If the creature is the only legal target, Flesh will still resolve but will have no effect as you didn't exile a card.

To cast a fused split spell, pay both of its mana costs. While the spell is on the stack, its mana value is the total amount of mana in both costs.

On the stack, a split spell that hasn't been fused has only that half's characteristics and mana value. The other half is treated as though it didn't exist.