Optimal Spell Dmg/Point of Dimishing Returns

[Virulence]

Has anyone found the necro point of diminishing returns post 70 for spell damage modifiers? Im over 400+ and still getting some marginal returns on Rot/Coil line while full benefit from Lifedrain/Cloud lines. The +modifier for vampire bats is capped fairly low.

[Boran]

It's 50% of total spell damage.

[Special]

<p>The next question is how do disease cloud items stack with spell dmg?  Anyone know if it's applied first rasing the base dmg and allowing spell dmg to eek out a bit more damage, or does it apply after only adding the disease cloud amount?</p>

[Eriol]

<cite>Boran wrote:</cite><blockquote>It's 50% of total spell damage.</blockquote>With or without the INT modifier, and what does that (approx) work out to at 80?  that'd be somewhere in the 800-point range for our main lifetap, but less for others.I gotta say it dramatically changes our "coil" line.  It's a nuke with a small dot component now, since it front-loads the +spell damage on it.  Strange that it doesn't happen with Vampire Bats though (the front-loading I mean).

[Boran]

As far as I am aware, the 50% is based on the spell damage after the normal modifiers have been used (ie INT).To the poster querying disease cloud, this is still +spell damage but it only affects disease based spells. Whether it is used first before normal +spell damage I have no idea (or check the spell forum).