Wondering why this build would need 20k mana - why not the usual 2k Energy?
because all incarnation spells obtain damage Synergy from current mana value and the Bonus of the most important spell - Annihilation - is capped at 20k mana.
Ahhh thanks! I hadn't spotted that it was based on mana instead of (the usual) Energy. (Actually I did a long time ago, but I forgot lol)
After reaching 2009 Energy and needing nothing in str/dex, I have 700+ stat points to use, so that could be either a lot of vit or... more mana. Is the extra damage worth it over what would be roughly 3k more life? Life atm is just over 9k which feels like a decent amount, so maybe not needed.
BTW Does the mastery skill Meditation affect the damage at all? I never understood the words under its synergy "100% increased mana scaling per base level". If it doesn't then it should be possible to take the 3 points out of Meditation and put somewhere else.