Quote from MitoMeg »Thanks for the tips!
The only problem i see is if my opponent starts first and drop in turn one Grafdigger's Cage. Then the only hope would be Gate to Phyrexia and one creature to sacrifice... but if i play something with Reanimate that would cost too many life points, i can be in serious trouble especially against a mono-red Burn/Dragons.
I prefer not to use other colors in my deck, only cause we have decided to use one color each.
Mono-black should always run Larry Niven's Disk for this reason. Also enchantments.