I dont give a fcuk about what combo for 2 heroes you guys can think of. But i am sure Abaddon + Necrolyte will make you guys can't kill in the lane anytime anywhere.

Otherwise if no Abaddon + Necrolyte , you may proceed to both alltime duo lane killer provided some brain knowing what to do > Crystal Maiden + Juggernaut > Viper + Vengeful Spirit. Both combo can be counter by Abaddon + Necrolyte too