Here is a very nice video about a support DH in season 6 (and patch 2.4.1)

https://www.youtube.com/watch?v=v-VFZ-Ar2F8

Actually I more or less knew all the buffs/debuffs, but there is and interesting part @12:25 about the Boyarsky's Chip and the taunt effect used with a very fast generator skill. This is very helpful if the 2.4.1 Meta-Team includes an Archon Wizard as main DPS, because he's extremely weak when not in Archon form, whereas a support DH is a huge bag of toughness.

Of course you don't want this if the main DPS is a Crusader/thorn who needs to be targeted to block in order to trigger effects etc.