I agree with Harolde to not use this threat for help on your army list. This is a reminder for bret players what to expect of skaven army's.
Another quick note: Bring something that can deal with long range units and warmachines. 12 bowmen 2 damsels and 3 peg knights are not going to work.

you probable have to deal with:
Warpfire throwers
Doomwheel
Warplightning Cannon
Skaven Poisoned Wind Mortar

Don't forget to tell us your findings in this threat. As that is the intention of this thread