Note: this is a theoretical build, not tested.

Range only matters for Sea Snares but 34% range is still enough to give 10+ m enemy seek range for stasis.
Because Roar is coded as faction damage it actually applies twice to slash. Excellent. Combined with 10 viral procs we [Reach] our maximum slash damage amplification so be sure bring a high status chance viral secondary.
Should also be pretty survivable with the very high 29,625 HP Merulina + 20s CC from Sea Snares globules. One globule can do total cold damage of x to one target.