Need help on this different troll build (not 55)

Well I always thought that holy wrath ended if u had 0 energy, but it doesnt!

So i set out to make a build for trolls using holy wrath and retribution.

Skills
Healing Hands
vigorous spirit (can be nething)
Quickening zephyr
serpents quickness
Balt Spirit
holy wrath
retribution
charm animal

Attributes:
healing 15 (11+3+1)
smiting 13 (10+3)
wilderness 10

1put down quickening zephyr and serpents
2put enchants on pet (all)
3aggro trolls
4make sure they attack ur pet
5wait for bout 10 secs then take off wrath
6cast HH and put back wrath
7repeat 5 and 6 till trolls dead

drop something for balthazars and bonnetis, that would help