The thing that makes me sad for
Chromium: he lacks green. With green, he would gain access to trample to go with rampage, but more importantly, you could run
Lure. Rampage with trample and
lure? That would be awesome! Instead, he will typically be blocked by one creature, probably with Deathtouch.
Nemesis Mask is going to be a must, in addition to ways to cheat it out and protect it.
March of Souls is another good option.