Final number is 30 (thanks John

)
5 - WoC
4 - Skaven
3 - Dwarfs, High Elves, Wood Elves
2 - DoC, Chaos Dwarfs, O&G
1 - Beastmen, Vamps, Brets, TKs, Empire, Dark Elves
So three armies with 2600 points and two with 2000
4 Dragons in 3 High Elf armies, 6 Dragons total. No Greater Daemons.