I'd try convert that steg into EoTG because of 2 reasons: 5+ ward at 12 inches+ with plaque of teapok u have a fair chance to get commet of...
I'd try nuking him with a slann and a priets's commet while diverting him with skirmishing skins. Im not sure getting in close combat with ogres...
At 2400 points I usually run a slann with this build: General, Lore - Fire 4 disciples consiousness cotigation presence stone BSB, Standard of...