Most will probably say, "Why put Impact damage on an [Arca Plasmor]?".

There is no native physical damage type for the [Arca Plasmor] so none of those can be used. By adding Impact damage the [Arca Plasmor] can use any mods that +% impact. So having impact damage could actually boost versatility from the weapon.

However, there is another benefit to adding Impact. It allows for a fourth element type. Configured properly it allows for Radiation which is native to the Arca Plasmor, Impact from the Sister of Parvos bonus damage, as well as two other elements.

In the build I am running I have:

• Impact
• Blast
• Radiation
• Corrosive

66% Crit Change with 4.2x damage
54.4% Status chance
2.1 Multishot

There are good odds of getting status across multiple enemies with each shot, and this now allows 4 elements to status instead of just 2 or 3. [Galvanized Savvy] could arguably be added here, probably in place of the [Primed Ravage]. But this has been a fun build to race around with.

It is my second [Tenet Arca Plasmor]. The other has toxin which seems to be the predominant meta, but I find I like running this one more often.