[Kraftwerk]

Elissa let me try and give you a rundown on why it's so effective:

At higher levels the pet heal is for 200hp at cost of 100 mana. 2hp/1mana.
Summoning a pet will be about 600-1000 hp depending on level, mana cost being 170-200 (depending on spec). Use focus item to reclaim energy old near dead pet for, lowballing, 100 mana. So now you cast a new pet for, including reclaim mana, 70-100 mana. That is 600-1000hp/100 mana or 6 - 10 hp/1mana, much greater than 2hp/1mana with pet heal.

Using this process you have pet attack and kill, you use lvl 1 DD and reap benefits then med while pet kills. Keep going until pet goes below 15% then reclaim recast and effectively you never have to stop killing, your only limit is the number of mobs you can clear in a single cycle using high powered DDs at your own discretion.