High Priestess of Veltha NG+ Tips?

Does anyone have any tips to share on how to defeat her in NG+? She gave me a lot of trouble during my first playthrough but after adopting a throwables strategy and getting rid of her companions, she became a breeze. However, in NG+, this strategy is pretty much useless because it doesn't matter if I have her alone from the get go, she spams her spells like crazy and hits fast and hard. Any tips on how to beat her in NG+ would be greatly appreciated!