4 and 5. Catastrophe is a shapeshifter that is made of natural disasters and elements like deadly ash of volcanos, winds and water that spin around and reach lightspeed with lightning and sharp indestructible rocks that spin with it (imagine a tornado...)... while Apocalypse is a shapeshifter that is made up of man-made disasters like nuclear energy of nukes, deadly chemical gas, absolutely toxic waste... they like to shapeshift together and think of themselves as twins, they both prefer forms that are humanoid elementals