>>21560551Defensively, Mega Camerupt is hideously weak to Water and also very susceptible to Ground. And while Water is rarely used outside of STAB, Ground is probably one of the most common coverage types in the entire game. Being able to sponge Fire, Electric, and Fairy
and to a lesser extent, Steel moves helps to offset this, though it's still a sticking point. Luckily for Mega Camerupt, finding a partner to cover both of its weaknesses isn't terribly hard to do. Start with Grass-types or Ground-resistant/immune Water-types and work from there.
Mega Abomasnow also has some problematic weaknesses. Poison, Bug, and Steel aren't exactly crippling, but being weak to Stealth Rock is an ill omen for what should be a slow, tanky nuke. Flying spam isn't quite so common outside of OU, but birds will still cause trouble for Obama. And taking 2x hits from Fighting-types will always suck. Mega Abomasnow's worst weakness, of course, is to Fire, (con't)