All right basic set up I have
Lord Skrulk(maybe spelling that wrong)
an Assassin
Plague priest with giant censor mount
and a warlock-engineer lol 1 with ddispell scrolls
Banners(most units have a banner)
Banner of Storms to mess with anything shooty or flying he has. Banner of Plagues(one turn all plague monks refill failed to hit and to wound rolls) and finally Banner of the under empire(2d6 S2 auto hits to all units in close combat wi th the unit)
Core 3x40 clanrat units with musician and banner on each and shields and spears.(one contains the assassin the other contains banner of storms) weapons team on each, I don't have multiples so one ratling gun one warpfire thrower and one poison wind mortar.
2x 40 plague monks w/musician and banners. one accompanies the plague priest and his giant censor
2x30 Stormvermin. one unit has the under empire banner
Special
5 Jezzails one of is a sharpshooter
1x20 censor bearers. stay close to censor to take advantage of stubborn.
Rare
Plagueclaw catapult
Warplighting cannon
my general plan is to use the banner of storms to massively disrupt his shooting and potential flyers and start closing the distance and got plague on him. close combat and force him to make toughness saves. use jezzails cannon and catapult to cause chaos and "snipe" danger units or characters early