I really like my set up;

Sasori - x - x
Karin - Pain (Shurado) - Earth Main
x - x - x

Summon - Monkey King.

Interrupt with Main and Shurado on mystery is great, lots of poison stacks and an okay heal. Main shields Kazekage Puppet first turn and the combo can start from any standard attack or Sasori's mystery. From Sasori's standard - High, Knockdown, Low, High, Repulse, Knockdown, High, 10 hit.

Cons: Once Pain goes down, and he will it's pretty much over