This Rune is great, but very expensive, so a big game is the only chance I have of using it. Most enemies will then send all their fliers into my crossbows to wipe out the poor little standard bearer. I stick Burlock next to him to issue challenges at anyone nasty looking. Having 8000pts means you can have up to 2000pts of allies - an army in itself. If you don't use allies normally, it's a good idea to try some in a battle this size.
Most Dwarf units are very similar, and do the same sort of thing - lots of skilled, tough warriors.
Cavalry units and fliers can be used to exploit breaks in the enemy lines caused by your artillery, or catch fleeing units that hav e outrun your stout warriors, or harass their war machines. Wizards bring in extra mobility and fire power, and also lots of dispel scrolls to protect your lads. Cheap troops like horse archers, halflings and skirmishing longbows can make excellent screens to protect your big blocks from fanatics or repeating bolt throwers. If you want to boost your army size, try bringing in blocks of 50 Bretonnian peasant spearmen led by a Hero with the Crown of Command. Compared to your other units they're incredibly cheap, and although they've only got a Weapon Skill of 2 they'll hold up the enemy long enough to get your best troops into position.