Observer: (Caution) Where the felhounds merely seek to devour magic, the Observers seek to see what magic has to offer, to devour the newest forms of magic, and to understand the secrets that lay within each form of spellcraft. To the demon hunters that manage to survive an encounter with these squid-like creatures in their binding rituals, they may walk away with a never-ending thirst to better their own magical talent, to understand the dark spellcraft of the fel, and to command the secrets of the universe.
I think you are referring to the Env Bert strat I have linked. Basically I agree. But you might have noticed that I already had added min power to pet #2, in order to exclude some of the substitutes. Though, I didn’t wan’t to do the same with the Blazehaound (pet #1), because I think the strat is doable also with a suboptimal breed. But maybe you are right and I should just exclude any non-P/P breeds.
Wrathguard: (Caution) The martial Eredar of the Burning Legion, these soldiers enact the will of the masters of their cause. Where the Felguard often charge crazed into battle, the Wrathguard operate under a singular purpose that is to protect their charges and to strike precisely against the enemies of the Burning Legion. Just the same, the Eredar Wrathguard are not to be trifled with, showcasing a pinnacle threat to any demon hunter unfortunate enough to summon one during their ritual. However, those that are capable of defeating these outstanding soldiers and maintaining their power would no doubt be imbued with the same physical endurance and threatening presence as that which now labors within them to escape.