Also, with the recommended pet spells you'll have a small army for yourself and Ice Prison + Hailstorm + Frozen Fate does a great crowd control. I've read some reports saying that Astral Ally isn't worth (the Ally dies fast and deals few damage at end game) so it was dropped.
Also, some people says that the bonuses are not that great because at end game you'll have more than +1000% magical damage. ELITE PRISMATIC BOLT EMBERMAGE GUIDE with wand + shieldĮlemental Boon has a short duration and long cooldown, so it was dropped.
