My take on VoD.
I played from late Prophecies (pretty low level so I don't proclaim myself as an expert here but have watched videos from this period after I got good) all the way to getting 2nd place in the last mAT with VoD with [KMD].
It was superior in every way compared to Lord damage. In excitement, build diversity, the fact that every game ended with one Lord actually dying, strategic diversity and comeback potential.
All NPCs mattered which ment most characters could split and achieve something.
Casters (the ones which could kill without line of sight) and split healing were in general weaker too which made it actually dangerous to engage some NPCs as well. Risk/reward.
I don't remember exactly what the state of the NPC AI was at the end or when the Lord walked etc as it was changed a few times. Perhaps the NPCs came in waves?
I do remember that they were decently easy to ball though which obviously was an issue but to me the main issue with VoD was skill balance and Scythes (amount of easy to bring AoE, especially in defensive attribute lines) and how skills and armor stacking through better knowledge kept power creeping to higher levels making it easier to abuse.
Examples:
Smiting - Smiter's boon obviously was the final straw that broke the back and allowed for a 4th healer who could also blow up NPCs. There are several skills in here though that just punish offensive play and can blow up balls of NPCs.
Illusion - Adding AoE to Clumsiness and it's copy gave a highly splitable and against physicals defensive character huge VoD power.
Splinter weapon - Was nerfed several times and while not being in a defensive line, was easily brought on a defensive character.
Overall, AoE got little benefits in GvG, especially AoE dps and high damage armor ignoring damage.
Skills like Ice spikes/Deep freeze, Barbed trap and perhaps Energy surge (even though it breaks my comment above) are to me some of the few good ones.
Side note: [EviL] seemed really taken on the bed and played VoD horribly against [iQ]. They should have won easily if they replayed those games again after analyzing what happened. To me, those games have been given too much credit to the destruction of VoD even though they of course put ideas into people's heads.
[EviL] did not split their sins when NPCs came out to force 6v6 but instead trained targets facing an Air of enchantment smiter and let iQ ball up NPCs among other things.