I've seen several bad builds so I wanted to share a theorycrafted build. It is based on the Uldar hybrid fire spec.
0/28/32 +1 molten core/emberstorm
http://wotlk.openwow.com/talent#IZcr0hkAdbhZVdGVbcuV
glyphs imp and inc
imp becomes a beast

Cor > imm > inc spam

affy spec and demo you can't get ruin
destro doesn't have conflag glyph

hope that helps