My riven is taking the base damage slot because it has lots of base damage. Removing puncture, in its place; more slash and impact and burn status. The negative is outweighed by 1) base damage, and 2) elemental dmg.
For multishot i am using [Split Flights] paired with [Thunderbolt]. To make things better [Primed Shred] adds punch through to enable greater multishot faster (if it doesn’t explode on hit, priming the area around for my multishot).
This is a critical primary build, which I have adapted for my riven.
This weapon will not be my main focus in high tier missions.