I think the ideal strategy, as far as I'm aware essentially amounts to: Take a Shadowstrike Starhost with a unit of Ripperdactyls and two units of chameleon skinks, pop the chameleon skinks up next to the target, make sure the target is the unit you select for "The trap is sprung", and now he's being hit with 10 3+ to hit, 4+ to wound, rerolling on 1s attacks. The next step is to make sure the bloat toad is on top of the target, bring the ripperdactyls in next to the chosen unit, declare they're swooping, charge, and go nuts. Plus the 3 moonstone spear 4+, 4+ rerollables, and the 9 Slashing Claws 3+, 3+ rerollables, your getting the 9 Vicious Beak 4+, 3+ rerollables, and EVERY HIT with the Vicious Beaks spawns another attack. So if by some stroke of luck you hit all 9, then you get to roll another 9 4+ rerollable attacks, then say you fail 2, then you get to roll another 7 4+ rerollables, until all your attacks fail, then you roll as many 3+ rerollable to wounds as all the attacks that succeeded. You'll literally be drowning in attacks. Nothing short of Archaon or some other similar absurdity can survive it. I mean, the ripperdactyls are guaranteed to die next turn, but most of the time you've either killed or crippled the lynchpin of their force, or at least something extremely important.