WAR OT enmity monger

[aleph_null]

As long as you're in tank stance

That's your answer. If your drk only does 1 power slash out of grit after you pull the boss then you'll rip it sooner or later even with not a single butcher's block, since your dps is naturally higher than the drk (assuming equally skilled and geared). That's where shadewalker comes in, but that still won't let you use butcher's block without forcing them to do another power slash.

Also - the OT should optimally be second in hate in case you, the MT, die.

Optimally the MT doesn't die.