My plan is to combine orhoz and boros for the prerelease

[Hunteroffire9]

My plan is to make red black white ftw.

[Fenster]

Helix on battalion attack angel with extort ftw

[Quackmaster5]

Naya FTW,  combine battalion and blood rush for amazing attack power! I'm gunna call it  "He-Man" build. Attack with alot of creatures and just blood rush anything I can.

[Xaol]

I wish you really could do this, but the truth is you build what you get in the packs :/
I tried to go Golgari/Rakdos aggro in the RtR prerelease, but when I opened the packs I ended up going Azorius control!