Button 2 (main dps)
/cast Lava Burst
/castrandom lightning bolt, chain lightning

This does not work. All it will do is cast lava burst.

If you change it to

/castrandom lava burst
/castsequence lightning bolt, chain lightning

It works.. But still its not good. Its acting strange. We need to figure out a good way to do this. I will try the double cast after auctioneer is finished.

The double cast didnt work. It just wants to cast lava burst.