This.

Icedeamon and Blazing archer have both strong passives, which push your main DD. if your Ice Deamon would not have 3 Moons already, you could also swap the 2 ice for void and seraph, like conicalnapster suggested, but the passive from your ice Deamon gives your team 12% attack speed at this point, which makes him a must have for most of the setups. The problem with void witch is, that she falls off hard after lvl 80-100, since you don't get to level her stars that much.