You're also going to need more spell power to burst down geared teams. 1900 is a bit low. My main has 2170 at the moment, no amazing but if they aren't furious geared and 2k+ mmr they will explode. Couple of guys on the other thread around 2k rating are running 2400sp unbuffed, and apparently that's about what you need to blow up full furious geared teams.

Make sure you also have at least 95 spell penetration and a good 6% +hit. Have your paladin make a totem stomping macro with his longest ranged judgment, with fire resist and nature resist totems as the top priority. You can easily get rid of grounding totems with searing totems or just by purging someone.