PoE Barrage, Champion, Bow builds

Had an idea for a tornado shot impale champion that uses steelworm alongside perseverance to scale defences. Getting damage on the build is the tricky part, has anybody played any impale builds and have some ideas on how this can be improved?

Just posting this as I haven't seen anyone mention it. Base damage buff and new higher tier quiver mods and base are all huge for doomfletch prism. Haven't properly pob'd it but just in case anyone wants some inspiration for a potential build. some thoughts for synergy: low life to use bloodthirst (100 flat phys @ 5k hp is huge), using leaderships price for brittle (low base crit so 15% base crit is huge) scorch (30% on all ele res, great for doomfletch as its all elements) and sap. Trinity support is also good Ascendancies: for low life champion is really nice, you can set up to have a life