What challenges would you put in front of a level 100 party?

[Zandel]

What i'd/have done is make a quest to grant the chars divinity then level is far less important. A gods power is measured by there divine rank and to get a higher divine rank they need followers... the more the higher the rank. Now that your players main chars are gods let them make new chars that worship and work for there god chars to get them more worshipers and thus more power. And as gods the players first chars can NOT help out the new PCs too much or the more powerful gods will take them out.

 

[RisnDevil]

Where can you get the Immoral's Handbook Epic Bestiary Vol I?

 

[Darkness]

Where can you get the Immoral's Handbook Epic Bestiary Vol I?

Maybe this site has this information: http://www.immortalshandbook.com/

 

[Felnar]

challege?
how about avoiding boredom?

 

[Sejs]

A really, really good CR 105 thief to steal away all their gigantic super-duper magic items.

Maybe some kind of epic Spellthief/Void Incarnate so magic wouldn't be so big of an issue.