The Errant Cape is better for party play, and this is better for soloing.
With the cape, you've got plenty of extra mana, and less enmity. This lets you cast a bit more, and with less caution - less hate is a good thing.
With this mantle, you don't need to worry about hate, if you're alone. You're getting all of it. It's best, then, to have some extra HP.
I think it may be possible to get more mana with this mantle than with the cape, but the lesser enmity is a huge bonus that can't be ignored for partying.
You'd need 1500mp (min) for this cape to give more than an Errant cape..which would take a Taru smn of roughly 70+. And they'd probably take the Errant cape still, since they'd want their avatar to get more hate anyways.
ummm, don't get too mad at me if I am wrong....but mathematically speaking, +1% of 1500mp is 150mp the Errant Cape only gives +30mp so logically, isn't all that is needed is 300mp or more for this cape to give more mp than the errant....?
wow....um, look over there >_> ok, so that didn't work, well I see that I am way wrong ^_^ and /sorry to the thread I tried to "fix". So ya, this cloak isn't as good as errant....but, more in line with my stupid error, wouldn't +10% mp be awesome?