Arcane prestiege class question

[Nightraiderx]

I am trying to remember what book and what prestiege class
allows you to cast multiple buff spells on people?

[Snowbluff]

War Weaver (Heroes of Battle)?

[Scumbaggery]

This is generic, can you recollect anything else it can do?

[Nightraiderx]

War Weaver (Heroes of Battle)?

War Weaver was exactly what I was looking for thank you.
I intend on making a rainbow servant/war weaver build with a beguiler base
so everyone can get buffed.