6 wraithguard and 1 warlock vs lord + 6 incubi (assume dracon, shadowfield, agonizer, sp, the works)
1.3333 dead from agonizer, 4.5 dead from incubi
sole wraithguard hits back, .111111 incubi dead, warlock hits back (assume witchblade + sp), .2222 incubi dead.
Either you had terrible luck or your opponent was leading you on.
(a agonizer IS a ccw. Sorry, but it needed to be asked- do you have a codex?)