The Volt warframe (Dreamers Bond, Redirection, Vitality), together with Paris and Dex Nikana have proven good enough to rush the story including the Second Dream, and I was able to cheese most junctions by slightly outranging my enemies in melee. Now, for quite a while, I have been stuck on Sedna Junction. Not only do I not know how to deal with the toxin (that basically instakills my warframe if I get hit twice), I also can't effectlvely deflect the bullets with my sword (a strategy I have been using because my shields regen slightly faster than the specter's) because somehow the toxin splatters.
Does anyone have any tips for how I can beat Saryn, preferably with as little grind as possible? Is there any additional information I should provide?