Second Coil Turn 7 off tank issue

[Taika]

Healers should also not cast AoE heals (or have AoE regens up) when the adds pop, so make sure that's not the case.

[ispano]

Healers should also not cast AoE heals (or have AoE regens up) when the adds pop, so make sure that's not the case.

This is the main thing, because there's a second or two before the mob shows up where you can still generate enmity on it, ie healers.

[Kinny]

Like everyone else said, the RoH animation is pretty slow and it doesn't seem to count the hit until the end of the animation. You can try using Savage Blade first, or Flash for immediate threat and then follow up with RoH.