I played yesterday against beastmen with a substandard list (I've only got 1050 worth of my own models so we did this). We picked realm of fire and rolled the D6 and got 2, which increases missile weapons rend by -1 when shot over 12". This was insanely effective. Despite me not yet having a slann and him summoning beastmen everywhere after sacrificing lots of his own, my 20 man blob of skinks was incredible. First turn he advanced his tzaangor skyfires just out of shooting distance (stupidly) and I moved up in my turn and shot at them with my stegadons skystreak bow (-2 rend over 12") my oldbloods gauntlet (-2) and my 20 skinks with boltspitters (-1). Wiped them clean off the battlefield before they could do anything. Every other game they have been very pesky so this was satisfying. His face was hilarious! The -1 for the skinks and the adding 1 to hit because they had 20 made them more effective than I could have thought. Basically I'd recommend this realm as it's pretty fun (need to roll a 2 for that bonus though). You can also set fire to terrain pieces. I was wondering if anyone has had any more fun with some realm rules (or bad luck!)??