This is primarily a heavy attack build, it exists in much the same vein as my heavy attack Heliocor build, only this is more focused on puncture damage.

Despite being a heavy attack build, you can get up to 400% crit chance with a full combo, if you want to go that route, swap [Killing Blow] for [Drifting Contact] or put [Swift Momentum] in your warframe's aura slot (or both if you want overkill).

My Shildeg is a 49% toxin roll which somewhat dictated the elemental damage I decided to do on the weapon.

For more information on the kuva litch system, including the added elemental damge: Check out the wiki