If you have problems with rangers pulling hate, they're doing it wrong really. Ask them to invest in -enmity sets and /drg. This shouldn't be underestimated, had a rough fight once where some rangers got killed by dark star and I was the only one left standing, I did 22k damage in 23 minutes and never pulled hate doing it.
Dodging tancing tail is the way to go tanking, however it's fun on rng to fire a barrage when he performs it, so he'll do it back to back and the tank will have to eat the second
