Your dream ability draft

Agility Hero

Essence Shift
Backstab
Fervor
Marksmanship

Any ranged hero: Arctic Burn, Thirst, Take Aim, Impetus

I actually got this once.(base was tusk)

Arcane Orb
essence aura
Aftershock

ulti was Mana Void, though the ideal one is Ball Lightning.

however, we lost due to the enemy natures prophet with Enchant Totem and Walrus Punch.

I'm thinking about a good strength hero with a good int gain (like bristle) or an int with good strength gain.

then go for:
ult-reaperscythe
heartstopper aura
surge (or how dark seers movement speed buff is called) or a blink
in this spots some nuke with or without cc or something that would boost survivability even more like the BB passive.

this goes to a better tank necrophos with his aura and sending people into oblivion with your ult with ease