Commander with accuracy traits, juggs with Doom Hammers. They do insane damage, and will knock troops down too. The Tactician traits help with the lack of initiative on clubs as well. Remember the innate juggernaught bonuses as well, double damage etc. if you skip the HP trait you can create some insane glass cannons. 

Make a Jug with doom maul and replace the 30 hp with the +4 initiative +1 move trait. Add 8 Sions on wargs with initiative boosters. Make all the Sions commanders with the command ability. Your Juggernaut will do insane damage and move 9 times before your opponent's first turn.