I had one on live and it was fun, with the changes to DM, here on HC it should be insane to play. As Hyper said, Elect is easy to cap and you can even get tolerable Toxic Resist out of it (granted, you'll be way over cap in other areas... so you'll need to decide where to put your slots). That said, even with a few (3) slots in Power Sink you can do a decent job sapping (especially if you add an End Mod to Electric Field). DM's heal will also help offset the slow recharge time of Elect's Heal, and Lightning Reflexes will help recharge all of DM's powers in general. Overall, a very good/complimentary pairing... Damn, now I'm going to have to see if I've got one here or not... So many Tanker combos, so little time...